diff --git a/.env.example b/.env.example
old mode 100755
new mode 100644
diff --git a/.gitea/workflows/build-images.yaml b/.gitea/workflows/build-images.yaml
old mode 100755
new mode 100644
index 1820629..81d95d9
--- a/.gitea/workflows/build-images.yaml
+++ b/.gitea/workflows/build-images.yaml
@@ -11,30 +11,42 @@ concurrency:
   cancel-in-progress: false
 
 jobs:
+  plan:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.matrix.outputs.matrix }}
+    steps:
+      - name: Check out repository
+        uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262  # v4.4.0
+      - name: Install manifest dependency
+        run: apt-get update && apt-get install -y python3-yaml
+      - name: Check generated platform files
+        run: python3 scripts/generate-platform.py --check
+      - name: Generate build matrix
+        id: matrix
+        run: printf 'matrix=%s\n' "$(python3 scripts/generate-platform.py --matrix gitea)" >> "$GITHUB_OUTPUT"
+
   build:
+    needs: plan
     runs-on: incus
     timeout-minutes: 240
     strategy:
       fail-fast: false
       max-parallel: 1
-      matrix:
-        variant: [base, php, python, cpp, typescript, full]
+      matrix: ${{ fromJSON(needs.plan.outputs.matrix) }}
     steps:
       - name: Check out repository
         uses: https://github.com/actions/checkout@11d5960a326750d5838078e36cf38b85af677262  # v4.4.0
-
       - name: Validate repository
         run: ./tests/validate-repository.sh
-
       - name: Verify Incus build runner
-        run: ./scripts/ci/check-incus-runner.sh
-
+        run: |
+          ./scripts/ci/check-incus-runner.sh
+          ./scripts/ci/check-architecture.sh "${{ matrix.architecture }}"
       - name: Build image
         run: ./scripts/build-image.sh "${{ matrix.variant }}"
-
       - name: Package image
         run: ./scripts/package-image.sh "${{ matrix.variant }}"
-
       - name: Publish Gitea Generic Package
         if: ${{ startsWith(gitea.ref, 'refs/tags/v') }}
         env:
diff --git a/.gitea/workflows/validate.yaml b/.gitea/workflows/validate.yaml
old mode 100755
new mode 100644
index 03d5581..dac6d19
--- a/.gitea/workflows/validate.yaml
+++ b/.gitea/workflows/validate.yaml
@@ -18,7 +18,7 @@ jobs:
       - name: Install validation dependencies
         run: |
           apt-get update
-          apt-get install -y jq shellcheck yamllint
+          apt-get install -y jq python3-yaml shellcheck yamllint
 
       - name: Validate repository
         run: ./tests/validate-repository.sh
diff --git a/.github/workflows/build-images.yaml b/.github/workflows/build-images.yaml
old mode 100755
new mode 100644
index 96b1479..d3c72f7
--- a/.github/workflows/build-images.yaml
+++ b/.github/workflows/build-images.yaml
@@ -14,39 +14,50 @@ concurrency:
   cancel-in-progress: false
 
 jobs:
+  plan:
+    runs-on: ubuntu-24.04
+    outputs:
+      matrix: ${{ steps.matrix.outputs.matrix }}
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
+      - name: Install manifest dependency
+        run: sudo apt-get update && sudo apt-get install -y python3-yaml
+      - name: Check generated platform files
+        run: python3 scripts/generate-platform.py --check
+      - name: Generate build matrix
+        id: matrix
+        run: printf 'matrix=%s\n' "$(python3 scripts/generate-platform.py --matrix github)" >> "$GITHUB_OUTPUT"
+
   build:
+    needs: plan
     runs-on: [self-hosted, linux, incus]
     timeout-minutes: 240
     strategy:
       fail-fast: false
       max-parallel: 1
-      matrix:
-        variant: [base, php, python, cpp, typescript, full]
+      matrix: ${{ fromJSON(needs.plan.outputs.matrix) }}
     steps:
       - name: Check out repository
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1  # v7.0.1
-
       - name: Validate repository
         run: ./tests/validate-repository.sh
-
       - name: Verify Incus build runner
-        run: ./scripts/ci/check-incus-runner.sh
-
+        run: |
+          ./scripts/ci/check-incus-runner.sh
+          ./scripts/ci/check-architecture.sh "${{ matrix.architecture }}"
       - name: Build image
         run: ./scripts/build-image.sh "${{ matrix.variant }}"
-
       - name: Package image
         run: ./scripts/package-image.sh "${{ matrix.variant }}"
-
       - name: Upload downloadable image package
         uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f  # v7.0.0
         with:
-          name: vdm-opencode-${{ matrix.variant }}-${{ github.ref_name }}
-          path: build/packages/*/${{ matrix.variant }}/
+          name: vdm-opencode-${{ matrix.variant }}-${{ matrix.architecture }}-${{ github.ref_name }}
+          path: build/packages/*/${{ matrix.architecture }}/${{ matrix.variant }}/
           if-no-files-found: error
           compression-level: 0
           retention-days: 30
-
       - name: Publish Gitea Generic Package
         if: ${{ startsWith(github.ref, 'refs/tags/v') && vars.GITEA_PUBLISH_ENABLED == 'true' }}
         env:
diff --git a/.github/workflows/validate.yaml b/.github/workflows/validate.yaml
old mode 100755
new mode 100644
index 5c12f25..f8f635f
--- a/.github/workflows/validate.yaml
+++ b/.github/workflows/validate.yaml
@@ -25,7 +25,7 @@ jobs:
       - name: Install validation dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y jq shellcheck yamllint
+          sudo apt-get install -y jq python3-yaml shellcheck yamllint
 
       - name: Validate repository
         run: ./tests/validate-repository.sh
diff --git a/CHANGELOG.md b/CHANGELOG.md
old mode 100755
new mode 100644
index f2cf63d..2ebde63
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 0.3.0-rc.1 - 2026-07-22
+
+- Made `manifest/images.yaml` the schema-validated authority for composition,
+  architectures, policies, sizes, profiles and GitHub/Gitea matrices.
+- Added GPL-3.0-only licensing and Vast Development Method copyright ownership.
+- Added restricted Incus projects, public-only connected egress, offline and
+  fail-closed gateway policies, enforced session TTLs and VM expiry reaping.
+- Removed Java and split browser/database provisioning into reusable components.
+- Added architecture-safe artifacts, provenance, SBOM/Grype release gates,
+  OpenBao-backed Cosign hooks and upload-last Gitea completion markers.
+- Added OpenAI, Claude, Gemini, Grok and local gateway routes plus Git/VPS
+  capability-path documentation.
+- Added static manifest, security, drift, matrix and artifact tamper tests.
+
 ## 0.2.0 - 2026-07-22
 
 - Split GitHub and Gitea workflows so each uses its own expression context and runner model.
diff --git a/COPYRIGHT b/COPYRIGHT
new file mode 100644
index 0000000..aa3eca6
--- /dev/null
+++ b/COPYRIGHT
@@ -0,0 +1,8 @@
+VDM OpenCode Platform
+
+Copyright (C) 2026 Vast Development Method
+
+Vast Development Method is the copyright holder for the original source code,
+configuration, documentation, and other original works in this repository.
+
+SPDX-License-Identifier: GPL-3.0-only
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
index d4e3b96..f354b62 100644
--- a/Makefile
+++ b/Makefile
@@ -1,47 +1,32 @@
 SHELL := /usr/bin/env bash
 
-.PHONY: help validate bootstrap apply-incus build-base build-php build-python build-cpp build-typescript build-full build-all local-release
+.PHONY: help validate generate bootstrap apply-incus build build-all local-release
 
 help:
 	@printf '%s\n' \
-	  'make validate          Validate repository syntax and secret hygiene' \
-	  'make bootstrap         Install host prerequisites and initialise Incus' \
-	  'make apply-incus       Apply project, networks, ACL and profiles' \
-	  'make build-base        Build the base image' \
-	  'make build-php         Build the PHP/Joomla image' \
-	  'make build-python      Build the Python image' \
-	  'make build-cpp         Build the C/C++ image' \
-	  'make build-typescript  Build the TypeScript/browser image' \
-	  'make build-full        Build the full mixed-language image' \
-	  'make build-all         Build every image variant' \
+	  'make validate          Validate repository syntax, generated state and security contracts' \
+	  'make generate          Regenerate all derived platform files from manifest/images.yaml' \
+	  'make bootstrap         Install host prerequisites, Incus and the TTL reaper' \
+	  'make apply-incus       Apply restricted project, networks, ACLs and profiles' \
+	  'make build IMAGE=php   Build one manifest-defined image' \
+	  'make build-all         Build every release-enabled image' \
 	  'make local-release     Build, package, verify and optionally publish locally'
 
 validate:
 	./tests/validate-repository.sh
 
+generate:
+	python3 ./scripts/generate-platform.py --write
+
 bootstrap:
 	./scripts/bootstrap-host.sh
 
 apply-incus:
 	./scripts/apply-incus.sh
 
-build-base:
-	./scripts/build-image.sh base
-
-build-php:
-	./scripts/build-image.sh php
-
-build-python:
-	./scripts/build-image.sh python
-
-build-cpp:
-	./scripts/build-image.sh cpp
-
-build-typescript:
-	./scripts/build-image.sh typescript
-
-build-full:
-	./scripts/build-image.sh full
+build:
+	@test -n "$(IMAGE)" || { printf 'IMAGE is required (for example: make build IMAGE=php)\n' >&2; exit 2; }
+	./scripts/build-image.sh "$(IMAGE)"
 
 build-all:
 	./scripts/build-all-images.sh
diff --git a/NOTICE.md b/NOTICE.md
index 3f1dcc5..88f1cfb 100644
--- a/NOTICE.md
+++ b/NOTICE.md
@@ -1,7 +1,11 @@
-# Internal platform notice
+# VDM OpenCode Platform notice
 
-This repository is an internal VDM platform definition. It intentionally contains no provider credentials,
-Git credentials, Vaultwarden credentials, OpenBao tokens, Nextcloud app passwords, Joomla API tokens,
-private SSH keys, or private source repositories.
+Copyright (C) 2026 Vast Development Method.
 
-Choose and add an explicit software licence before publishing this repository outside the company.
+The original repository source is licensed under GNU GPL version 3 only
+(`GPL-3.0-only`). Software installed into generated VM images retains its own
+copyright and licence; an image SBOM is the authority for redistributed
+third-party components.
+
+This repository intentionally contains no provider credentials, Git
+credentials, OpenBao tokens, private SSH keys, or private source repositories.
diff --git a/README.md b/README.md
old mode 100755
new mode 100644
index c8e98e5..099736f
--- a/README.md
+++ b/README.md
@@ -92,3 +92,12 @@ Start with:
 - `docs/gitea-packages.md`
 - `docs/github-and-gitea.md`
 - `docs/backup-and-migration.md`
+
+## Licence and ownership
+
+Copyright (C) 2026 Vast Development Method.
+
+The original repository source is licensed under the GNU General Public
+License version 3 only (`GPL-3.0-only`). See `LICENSE` and `COPYRIGHT`.
+Generated images contain independently licensed third-party software whose
+licences are recorded by the release SBOM.
diff --git a/VERSION b/VERSION
old mode 100755
new mode 100644
index 0ea3a94..8f2e859
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.2.0
+0.3.0-rc.1
diff --git a/broker/.env.example b/broker/.env.example
index 1699619..4c756d2 100644
--- a/broker/.env.example
+++ b/broker/.env.example
@@ -8,6 +8,14 @@ OPENBAO_ADDR=http://openbao:8200
 
 # Never commit real provider keys.
 OPENAI_API_KEY=
+OPENAI_MODEL=
 ANTHROPIC_API_KEY=
+ANTHROPIC_MODEL=
+GEMINI_API_KEY=
+GEMINI_MODEL=
 XAI_API_KEY=
+XAI_MODEL=
+LOCAL_MODEL=
+LOCAL_OPENAI_BASE_URL=
+LOCAL_OPENAI_API_KEY=
 LITELLM_MASTER_KEY=
diff --git a/broker/compose.yaml b/broker/compose.yaml
index ad796ee..504afc5 100644
--- a/broker/compose.yaml
+++ b/broker/compose.yaml
@@ -15,8 +15,16 @@ services:
     command: ["--config", "/etc/litellm/config.yaml", "--port", "4000"]
     environment:
       OPENAI_API_KEY: ${OPENAI_API_KEY:-}
+      OPENAI_MODEL: ${OPENAI_MODEL:?Set an approved OpenAI provider/model route}
       ANTHROPIC_API_KEY: ${ANTHROPIC_API_KEY:-}
+      ANTHROPIC_MODEL: ${ANTHROPIC_MODEL:?Set an approved Anthropic provider/model route}
+      GEMINI_API_KEY: ${GEMINI_API_KEY:-}
+      GEMINI_MODEL: ${GEMINI_MODEL:?Set an approved Gemini provider/model route}
       XAI_API_KEY: ${XAI_API_KEY:-}
+      XAI_MODEL: ${XAI_MODEL:?Set an approved xAI provider/model route}
+      LOCAL_MODEL: ${LOCAL_MODEL:?Set an approved local provider/model route}
+      LOCAL_OPENAI_BASE_URL: ${LOCAL_OPENAI_BASE_URL:?Set the local OpenAI-compatible endpoint}
+      LOCAL_OPENAI_API_KEY: ${LOCAL_OPENAI_API_KEY:-local}
       LITELLM_MASTER_KEY: ${LITELLM_MASTER_KEY:?Set a broker master key through secret injection}
     volumes:
       - ./config/litellm.yaml:/etc/litellm/config.yaml:ro
diff --git a/broker/config/litellm.yaml b/broker/config/litellm.yaml
index bffe6b3..6fb3a29 100644
--- a/broker/config/litellm.yaml
+++ b/broker/config/litellm.yaml
@@ -1,24 +1,29 @@
 model_list:
   - model_name: openai-default
     litellm_params:
-      model: openai/REPLACE_WITH_APPROVED_MODEL
+      model: os.environ/OPENAI_MODEL
       api_key: os.environ/OPENAI_API_KEY
 
   - model_name: anthropic-default
     litellm_params:
-      model: anthropic/REPLACE_WITH_APPROVED_MODEL
+      model: os.environ/ANTHROPIC_MODEL
       api_key: os.environ/ANTHROPIC_API_KEY
 
+  - model_name: gemini-default
+    litellm_params:
+      model: os.environ/GEMINI_MODEL
+      api_key: os.environ/GEMINI_API_KEY
+
   - model_name: xai-default
     litellm_params:
-      model: xai/REPLACE_WITH_APPROVED_MODEL
+      model: os.environ/XAI_MODEL
       api_key: os.environ/XAI_API_KEY
 
-  - model_name: local-llama
+  - model_name: local-default
     litellm_params:
-      model: openai/REPLACE_WITH_LOCAL_MODEL_ID
-      api_base: http://local-llm.internal:11434/v1
-      api_key: local
+      model: os.environ/LOCAL_MODEL
+      api_base: os.environ/LOCAL_OPENAI_BASE_URL
+      api_key: os.environ/LOCAL_OPENAI_API_KEY
 
 general_settings:
   master_key: os.environ/LITELLM_MASTER_KEY
diff --git a/broker/policies/release-signer.hcl b/broker/policies/release-signer.hcl
new file mode 100644
index 0000000..81af41c
--- /dev/null
+++ b/broker/policies/release-signer.hcl
@@ -0,0 +1,9 @@
+# The release job can inspect the public key and ask Transit to sign digests.
+# It cannot export key material or read unrelated secrets.
+path "transit/keys/vdm-opencode-release" {
+  capabilities = ["read"]
+}
+
+path "transit/sign/vdm-opencode-release/*" {
+  capabilities = ["update"]
+}
diff --git a/broker/policies/session-broker.hcl b/broker/policies/session-broker.hcl
new file mode 100644
index 0000000..ef6ea75
--- /dev/null
+++ b/broker/policies/session-broker.hcl
@@ -0,0 +1,21 @@
+# Applied only to the trusted external session broker. Agent VMs never receive
+# an OpenBao token and never access these paths.
+path "secret/data/providers/*" {
+  capabilities = ["read"]
+}
+
+path "pki_int/issue/agent-session" {
+  capabilities = ["update"]
+}
+
+path "ssh-client-signer/sign/agent-session" {
+  capabilities = ["update"]
+}
+
+path "auth/token/lookup-self" {
+  capabilities = ["read"]
+}
+
+path "auth/token/renew-self" {
+  capabilities = ["update"]
+}
diff --git a/docs/credentials-and-brokers.md b/docs/credentials-and-brokers.md
old mode 100755
new mode 100644
index 9897e24..9bf1710
--- a/docs/credentials-and-brokers.md
+++ b/docs/credentials-and-brokers.md
@@ -24,6 +24,31 @@ A trusted broker host should retain long-lived upstream credentials and expose o
 
 The VM must never receive a Vaultwarden or OpenBao identity capable of reading all upstream secrets.
 
+## Provider capability paths
+
+Autonomous sessions use one route for each provider:
+
+- OpenAI API, Anthropic/Claude API, Google Gemini API and xAI/Grok API:
+  OpenBao-held upstream credential → LiteLLM policy route → short-lived session
+  virtual key → root-owned guest relay → tokenless local OpenCode endpoint.
+- Local models: the gateway exposes approved OpenAI-compatible inference
+  routes only. Model administration and the host Ollama/API port remain
+  unreachable from agent networks.
+- ChatGPT subscription login: interactive developer sessions may use
+  OpenCode's supported login inside tmpfs. It is not an autonomous production
+  credential path.
+- GitHub: the gateway mints a GitHub App installation token scoped to selected
+  repositories and operations.
+- Gitea and remote MCP: the gateway retains the service credential and checks
+  session identity, repository, tool, read/write level and expiry per request.
+- VPS access: the VM creates an ephemeral key; OpenBao SSH CA signs the public
+  key for 10–15 minutes; the network policy permits only the audited bastion.
+
+The current environment-file bridge is transitional. It now uses systemd
+credentials and avoids secret values in host process arguments, but child
+commands can still exercise or inspect exported session variables. Release
+promotion requires the tokenless root-owned relay described above.
+
 ## OpenBao
 
 OpenBao is suitable for machine identity, short leases, revocation and audit. The agent should not query secret
diff --git a/docs/gitea-packages.md b/docs/gitea-packages.md
old mode 100755
new mode 100644
diff --git a/docs/github-and-gitea.md b/docs/github-and-gitea.md
old mode 100755
new mode 100644
diff --git a/docs/image-variants.md b/docs/image-variants.md
index de89995..e7e20a9 100644
--- a/docs/image-variants.md
+++ b/docs/image-variants.md
@@ -1,39 +1,48 @@
-# Image variants
+# Composable images, capabilities, policies and sizes
 
-## Common base
+`manifest/images.yaml` is the sole platform authority. Run
+`python3 scripts/generate-platform.py --write` after an intentional manifest
+change; validation fails when any derived profile, shell list, version or CI
+matrix is stale.
 
-Every image includes Git, OpenCode, Node.js, Python runtime support, `uv`, `jq`, shell tooling, the common agents,
-managed OpenCode policy and local Git MCP.
+## Release images
 
-Python is present in the base only because the Git MCP reference server is Python-based. The Python project image
-adds development and quality tooling.
+- `base`: shell-oriented analysis and documentation.
+- `php`: PHP/Joomla/JCB plus Node, TypeScript, browser and database clients.
+- `python`: Python development, quality tools and MCP services.
+- `cpp`: C/C++ compilers, debuggers, build tools and analysis.
+- `typescript`: Node, TypeScript, browser automation and Playwright MCP.
+- `full`: the union of the ready language and packaged capabilities.
 
-## PHP
+Java, Go and Rust are intentionally absent. Android is a planned capability
+whose future SDK may require a JDK internally; that will not create a general
+Java development image.
 
-Adds PHP CLI extensions, Composer and MariaDB client. It also adds Chromium and Playwright because Joomla and JCB
-work normally requires browser verification.
+## Build-time capabilities
 
-## Python
+Browser and database are ready composable components. Android, GPU, rootless
+containers, GUI, audio and security tooling are catalogued as planned so the
+schema can grow without inventing combinations or claiming unfinished support.
 
-Adds Python headers, pytest, Ruff and mypy.
+## Runtime policies
 
-## C/C++
+- `offline`: no egress.
+- `connected`: public Internet with private, management, link-local and
+  metadata networks rejected.
+- `brokered`, `restricted` and `release`: fail closed until the external
+  gateway/proxy is deployed and tested.
+- `lab`: experimental hardware policy requiring explicit acknowledgement.
 
-Adds Clang, clang-tidy, CMake, Ninja, GDB, LLDB, Valgrind, cppcheck and gcovr.
+## Resource sizes
 
-## TypeScript
+Tiny, small, medium, standard, large, xlarge and builder profiles are selected
+at VM launch. They are independent of image composition, avoiding a
+combinatorial image catalogue.
 
-Adds TypeScript, tsx, Playwright MCP, Playwright and Chromium.
+## Adding support
 
-## Full
-
-Adds every language toolchain and Java 21. Use this only when a repository genuinely needs the combined stack.
-
-## Adding a variant
-
-1. Add a provisioning script under `image/provision`.
-2. Add a profile under `incus/profiles`.
-3. Add the variant to `manifest/images.yaml`.
-4. Extend `variant_exists` and the build matrix.
-5. Add smoke tests.
-6. Build from a clean base and record the resulting tool versions.
+1. Add a component and dimension entry to `manifest/images.yaml`.
+2. Keep it `planned` until provisioning, pins and verification exist.
+3. Add the provisioning script and smoke/security tests.
+4. Mark it `ready`, include it in the intended image, regenerate and validate.
+5. Build, export, independently import and record promotion evidence.
diff --git a/docs/jcb-mcp-roadmap.md b/docs/jcb-mcp-roadmap.md
old mode 100755
new mode 100644
diff --git a/docs/joomla-mcp-study.md b/docs/joomla-mcp-study.md
old mode 100755
new mode 100644
diff --git a/docs/known-limitations.md b/docs/known-limitations.md
old mode 100755
new mode 100644
index 06df2dd..60a6a77
--- a/docs/known-limitations.md
+++ b/docs/known-limitations.md
@@ -1,13 +1,26 @@
 # Known limitations
 
-- The repository has been statically validated, but the image build was not executed in this delivery environment
-  because nested Incus and external package downloads are unavailable here.
-- Ubuntu/Node/PHP system packages are resolved from the configured repositories at build time; their exact installed
-  versions are recorded inside each image manifest but are not yet sourced from a company snapshot mirror.
-- The Nextcloud candidate has not received a VDM security audit.
-- The VDM Joomla MCP and JCB MCP are intentionally not installed pending their first approved releases.
-- The reference broker does not yet implement the company MCP authorization gateway.
-- Incus ACLs currently provide inbound isolation but not strict DNS-aware outbound filtering.
-- GitHub image builds require a self-hosted runner labelled `self-hosted`, `linux`, `incus`. Gitea image builds
-  require a host runner labelled `incus:host`.
-- OpenCode config compatibility should be revalidated whenever OpenCode is upgraded.
+- Static and mocked validation is available, but the six real Incus images have
+  not yet been built in this delivery environment.
+- Ubuntu and Node packages still resolve from upstream repositories. The
+  NodeSource setup input is content-pinned, and release manifests record the
+  result, but a timestamped Ubuntu/package snapshot has not yet been enabled.
+- Syft, Grype and Cosign hooks fail closed in release mode, but a trusted
+  builder still needs those pinned tools and a short-lived OpenBao signing
+  identity.
+- AMD64 is the only promotable architecture. ARM64 identities are collision-safe
+  but remain disabled until native ARM64 build/import evidence exists.
+- Connected policy denies private, metadata and management IPv4 ranges while
+  retaining public Internet. Host-side DNS-aware Squid policy is still required
+  before brokered, restricted and release policies can be unblocked.
+- Session secrets no longer appear in Incus command arguments and the process
+  tree has a systemd-enforced TTL. The transitional session process still
+  exports scoped credentials to OpenCode and its children; the tokenless
+  root-owned relay remains a release gate.
+- OpenBao/LiteLLM policies and routes are defined but the external broker,
+  authorization gateway, audit device, unseal, backup and revocation tests are
+  not deployed by this repository.
+- GitHub/Gitea builds require owned hardware-virtualisation runners. A second
+  independent clean host is mandatory for redistribution evidence.
+- OpenCode configuration compatibility must be revalidated whenever OpenCode is
+  upgraded.
diff --git a/docs/local-image-builds.md b/docs/local-image-builds.md
index 240f132..86b42c6 100644
--- a/docs/local-image-builds.md
+++ b/docs/local-image-builds.md
@@ -32,7 +32,9 @@ export LOCAL_BUILD_VARIANTS='php,typescript,full'
 ./scripts/local-image-release.sh
 ```
 
-Packages remain under `build/packages/<version>/<variant>/`. Every package contains the Incus export, `manifest.json`, and `SHA256SUMS`; the release script verifies the checksums before it succeeds.
+Packages remain under `build/packages/<version>/<architecture>/<variant>/`.
+Every package contains the Incus export, manifest, provenance and checksums;
+release mode additionally requires an SBOM, vulnerability scan and signature.
 
 ## Publish directly to Gitea
 
@@ -61,7 +63,7 @@ For a reproducible production release, build the exact protected tag and require
 
 ```bash
 git fetch --tags --prune origin
-git switch --detach v0.2.0
+git switch --detach v0.3.0-rc.1
 
 export LOCAL_BUILD_VARIANTS=all
 export LOCAL_REQUIRE_CLEAN=true
@@ -79,7 +81,7 @@ export GITEA_PACKAGE_TOKEN
 unset GITEA_PACKAGE_TOKEN
 ```
 
-Replace `v0.2.0` with the version being released. Tags must not be recreated or force-moved after packages are published.
+Replace `v0.3.0-rc.1` with the version being released. Tags must not be recreated or force-moved after packages are published.
 
 ## Supported environment variables
 
diff --git a/docs/mcp-catalog.md b/docs/mcp-catalog.md
old mode 100755
new mode 100644
diff --git a/docs/quick-start.md b/docs/quick-start.md
old mode 100755
new mode 100644
diff --git a/docs/roadmap.md b/docs/roadmap.md
old mode 100755
new mode 100644
index 0e15913..af8f42d
--- a/docs/roadmap.md
+++ b/docs/roadmap.md
@@ -1,31 +1,61 @@
-# Roadmap
-
-## Phase 1: Baseline — implemented
-
-- Validate the repository on GitHub-hosted and Gitea runners.
-- Build all six variants on a trusted Incus runner.
-- Pilot local Git and Playwright MCP.
-- Configure ChatGPT Plus, Anthropic API, xAI API and local Llama routes.
-- Expose short-lived GitHub build artifacts and publish durable image packages to Gitea.
-
-## Phase 2: Broker
-
-- Deploy OpenBao and LLM gateway.
-- Implement short-lived virtual keys and budgets.
-- Put Gitea, GitHub and Nextcloud MCP behind the gateway.
-- Enforce DNS-aware egress policy.
-- Add central audit and revocation tests.
-
-## Phase 3: VDM Joomla and JCB
+# Roadmap and release-candidate gates
+
+## RC definition — implemented in source
+
+- Manifest schema 2 is the single authority for images, languages,
+  capabilities, policies, sizes, architectures, profiles and CI matrices.
+- Six composable release images remain: base, PHP, Python, C/C++, TypeScript
+  and full. Android, GPU, GUI, containers, audio and security tooling are
+  catalogued as planned and cannot enter a release matrix accidentally.
+- Incus restricted projects, fail-closed policy profiles, public-only connected
+  egress and session TTL enforcement are defined.
+- Architecture-specific package identities, SBOM/Grype hooks, provenance,
+  OpenBao-backed Cosign hooks, tamper verification and upload-last Gitea
+  completion markers are defined.
+- GPL-3.0-only licensing and Vast Development Method ownership are established.
+
+## RC evidence — next mandatory milestone
+
+The platform must not be promoted from RC until all gates pass:
+
+1. Bootstrap a clean Ubuntu host including QEMU/KVM and Incus.
+2. Build all six amd64 images from the exact protected commit/tag.
+3. Run language, browser, sanitisation and negative network tests.
+4. Generate SBOMs, pass the vulnerability policy and sign every package.
+5. Export every image and verify its signed package.
+6. Import, boot and smoke-test every package on a second clean amd64 host.
+7. Verify connected, offline and gateway policies against host, RFC1918,
+   metadata and public targets.
+8. Verify cgroup TTL termination after caller loss and host reaper cleanup.
+9. Exercise provider, GitHub App, Gitea MCP and short-lived SSH certificate
+   paths through the broker.
+10. Publish the signed completion index only after all evidence is present.
+
+ARM64 stays declared but non-promotable until equivalent native ARM64 evidence
+exists.
+
+## Broker and tokenless relay
+
+- Deploy OpenBao with audit, backup/restore, workload authentication and
+  carefully scoped policies.
+- Deploy LiteLLM and MCP authorization gateways.
+- Replace transitional session environment credentials with the root-owned
+  tokenless guest relay.
+- Configure self-hosted Squid allowlists for restricted and release policies.
+- Prove revocation, model budgets, repository/tool restrictions and bastion-only
+  VPS access.
+
+## Fleet self-service
+
+- Separate developer, builder and disposable automation Incus projects.
+- Add OIDC and self-hosted OpenFGA; ordinary users must never join
+  `incus-admin`.
+- Add a narrow provisioning API, task queue, quotas, ownership records, audit
+  events, health reconciliation, warm pools and automatic retirement.
+- Promote images through signed candidate/stable channels.
+
+## VDM Joomla and JCB
 
 - Release and review `vast-development-method/joomla-mcp`.
-- Complete JCB MCP protocol and test suite.
-- Add each integration only after its own activation gate passes.
-
-## Phase 4: Fleet
-
-- Central Incus cluster.
-- Department profiles and quotas.
-- Image promotion channels.
-- Automated retirement and compliance reporting.
-- Disposable task VMs and pull-request-only automation.
+- Complete the JCB MCP protocol and test suite.
+- Add each integration only after its own activation and credential-scope gate.
diff --git a/docs/versioning-and-promotion.md b/docs/versioning-and-promotion.md
old mode 100755
new mode 100644
index b90b268..ddf6e91
--- a/docs/versioning-and-promotion.md
+++ b/docs/versioning-and-promotion.md
@@ -3,9 +3,9 @@
 The repository version, image alias, Gitea package version and release tag must match.
 
 ```text
-Repository tag:       v0.2.0
-Incus alias:          vdm-opencode-php/0.2.0
-Gitea package:        vdm-opencode-php/0.2.0
+Repository tag:       v0.3.0-rc.1
+Incus alias:          vdm-opencode-php/0.3.0-rc.1-amd64
+Gitea package:        vdm-opencode-php-amd64/0.3.0-rc.1
 Build manifest:       /etc/vdm-opencode-platform/build.json
 ```
 
diff --git a/host/systemd/vdm-opencode-reaper.service.in b/host/systemd/vdm-opencode-reaper.service.in
new file mode 100644
index 0000000..2486e9a
--- /dev/null
+++ b/host/systemd/vdm-opencode-reaper.service.in
@@ -0,0 +1,12 @@
+[Unit]
+Description=Stop expired VDM OpenCode agent VMs
+After=incus.service
+Requires=incus.service
+
+[Service]
+Type=oneshot
+ExecStart=@ROOT_DIR@/scripts/reap-expired-vms.sh
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
diff --git a/host/systemd/vdm-opencode-reaper.timer b/host/systemd/vdm-opencode-reaper.timer
new file mode 100644
index 0000000..84c234d
--- /dev/null
+++ b/host/systemd/vdm-opencode-reaper.timer
@@ -0,0 +1,11 @@
+[Unit]
+Description=Check VDM OpenCode agent session TTLs every minute
+
+[Timer]
+OnBootSec=1min
+OnUnitActiveSec=1min
+AccuracySec=5s
+Persistent=true
+
+[Install]
+WantedBy=timers.target
diff --git a/image/files/etc/vdm-opencode-platform/authorities.env b/image/files/etc/vdm-opencode-platform/authorities.env
old mode 100755
new mode 100644
diff --git a/image/files/home/opencode/.config/opencode/agents/orchestrator.md b/image/files/home/opencode/.config/opencode/agents/orchestrator.md
index 4ceeeb2..bfae844 100644
--- a/image/files/home/opencode/.config/opencode/agents/orchestrator.md
+++ b/image/files/home/opencode/.config/opencode/agents/orchestrator.md
@@ -21,6 +21,10 @@ permission:
     security: allow
     browser-qa: allow
     documenter: allow
+    php-joomla: allow
+    python: allow
+    cpp: allow
+    typescript: allow
 ---
 
 You are the lead VDM engineering orchestrator.
@@ -34,5 +38,17 @@ For non-trivial work:
 6. Use browser-qa for user-facing applications.
 7. Send confirmed findings back for correction and repeat tests until clean.
 
+Every delegated task must include:
+
+- the exact objective and files in scope;
+- constraints and forbidden actions;
+- evidence required for completion;
+- the expected structured handoff: findings, changes, tests, residual risks.
+
+Do not treat a subagent's completion claim as evidence. Inspect its diff and
+test output before accepting the handoff. Keep one authoritative task ledger in
+the primary conversation and explicitly distinguish implemented, tested,
+blocked, and planned work.
+
 Stay inside the current worktree. Never reveal credentials. Never push, merge, publish, release, delete branches,
 rewrite history or modify production infrastructure without an explicit user instruction.
diff --git a/image/files/home/opencode/.config/opencode/opencode.json b/image/files/home/opencode/.config/opencode/opencode.json
old mode 100755
new mode 100644
diff --git a/image/files/usr/local/libexec/vdm-opencode-session b/image/files/usr/local/libexec/vdm-opencode-session
new file mode 100755
index 0000000..ca425a6
--- /dev/null
+++ b/image/files/usr/local/libexec/vdm-opencode-session
@@ -0,0 +1,51 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+umask 077
+
+: "${CREDENTIALS_DIRECTORY:?systemd credential directory is required}"
+: "${VDM_SESSION_ID:?session id is required}"
+: "${VDM_AGENT_HOME:=/home/opencode}"
+: "${VDM_WORKSPACE_ROOT:=/workspace}"
+
+allowed_key() {
+    case "$1" in
+        VDM_LLM_GATEWAY_URL|VDM_LLM_GATEWAY_TOKEN|\
+        GITHUB_MCP_URL|GITHUB_MCP_TOKEN|\
+        GITEA_MCP_URL|GITEA_MCP_TOKEN|\
+        NEXTCLOUD_MCP_URL|NEXTCLOUD_MCP_TOKEN|\
+        JOOMLA_MCP_URL|JOOMLA_MCP_TOKEN|\
+        JCB_MCP_URL|JCB_MCP_TOKEN|\
+        STT_MCP_URL|STT_MCP_TOKEN|\
+        VDM_LOCAL_LLM_BASE_URL|VDM_LOCAL_LLM_MODEL) return 0 ;;
+        *) return 1 ;;
+    esac
+}
+
+credential_file="$CREDENTIALS_DIRECTORY/session.env"
+while IFS= read -r line || [ -n "$line" ]; do
+    case "$line" in
+        ""|\#*) continue ;;
+        *=*)
+            key="${line%%=*}"
+            allowed_key "$key" || {
+                printf 'Rejected runtime credential key: %s\n' "$key" >&2
+                exit 2
+            }
+            value="${line#*=}"
+            declare -gx "$key=$value"
+            ;;
+        *)
+            printf 'Invalid runtime credential line.\n' >&2
+            exit 2
+            ;;
+    esac
+done < "$credential_file"
+
+export HOME="$VDM_AGENT_HOME"
+export USER=opencode
+export LOGNAME=opencode
+export PATH="$VDM_AGENT_HOME/.local/bin:/usr/local/bin:/usr/bin:/bin"
+export XDG_DATA_HOME="/run/vdm-opencode-$VDM_SESSION_ID/data"
+install -d -m 0700 "$XDG_DATA_HOME"
+cd "$VDM_WORKSPACE_ROOT"
+exec "$VDM_AGENT_HOME/.local/bin/opencode"
diff --git a/image/provision/browser.sh b/image/provision/browser.sh
new file mode 100755
index 0000000..dfc2a7a
--- /dev/null
+++ b/image/provision/browser.sh
@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+npm install --global \
+    "${PLAYWRIGHT_MCP_PACKAGE:?PLAYWRIGHT_MCP_PACKAGE is required}" \
+    "${PLAYWRIGHT_PACKAGE:?PLAYWRIGHT_PACKAGE is required}"
+install -d -m 0755 /opt/ms-playwright
+PLAYWRIGHT_BROWSERS_PATH=/opt/ms-playwright npx playwright install --with-deps chromium
+
+playwright_mcp_path="$(command -v playwright-mcp)"
+ln -sfn "$playwright_mcp_path" /usr/local/bin/vdm-playwright-mcp
+
+[ "$(playwright --version | awk '{print $2}')" = "$PLAYWRIGHT_EXPECTED_VERSION" ]
+
+installed_mcp="$(npm list --global --json --depth=0 | jq -r '.dependencies["@playwright/mcp"].version')"
+[ "$installed_mcp" = "$PLAYWRIGHT_MCP_EXPECTED_VERSION" ]
+test -x /usr/local/bin/vdm-playwright-mcp
+
+CONFIG=/home/opencode/.config/opencode/opencode.json
+tmp="$(mktemp)"
+jq '.mcp.playwright.enabled = true' "$CONFIG" > "$tmp"
+install -o opencode -g opencode -m 0640 "$tmp" "$CONFIG"
+rm -f "$tmp"
diff --git a/image/provision/common.sh b/image/provision/common.sh
index 4b2e764..5e976d0 100755
--- a/image/provision/common.sh
+++ b/image/provision/common.sh
@@ -41,22 +41,28 @@ install -d -o "$AGENT_USER" -g "$AGENT_USER" -m 0700 "$AGENT_HOME/.local/share/o
 install -d -m 0755 /etc/opencode /etc/vdm-opencode-platform
 
 if ! command -v node >/dev/null 2>&1 || [ "$(node --version | sed 's/^v//' | cut -d. -f1)" -lt 20 ]; then
-    curl -fsSL "https://deb.nodesource.com/setup_${NODE_MAJOR:-22}.x" | bash -
+    nodesource_setup="$(mktemp)"
+    trap 'rm -f "$nodesource_setup"' EXIT
+    curl --fail --silent --show-error --location \
+        "https://deb.nodesource.com/setup_${NODE_MAJOR:-22}.x" \
+        --output "$nodesource_setup"
+    printf '%s  %s\n' \
+        "${NODESOURCE_SETUP_SHA256:?NODESOURCE_SETUP_SHA256 is required}" \
+        "$nodesource_setup" | sha256sum --check --strict
+    bash "$nodesource_setup"
+    rm -f "$nodesource_setup"
+    trap - EXIT
     apt-get install -y --no-install-recommends nodejs
 fi
 
-if ! command -v uv >/dev/null 2>&1; then
-    curl -LsSf https://astral.sh/uv/install.sh | env UV_INSTALL_DIR=/usr/local/bin sh
-fi
-
 npm install --global "${OPENCODE_PACKAGE:?OPENCODE_PACKAGE is required}"
 opencode_path="$(command -v opencode)"
 ln -sfn "$opencode_path" "$AGENT_HOME/.local/bin/opencode"
 
 sudo -u "$AGENT_USER" -H env \
-    UV_TOOL_BIN_DIR="$AGENT_HOME/.local/bin" \
-    UV_TOOL_DIR="$AGENT_HOME/.local/share/uv/tools" \
-    uv tool install --force "${GIT_MCP_PACKAGE:?GIT_MCP_PACKAGE is required}"
+    PIPX_HOME="$AGENT_HOME/.local/share/pipx" \
+    PIPX_BIN_DIR="$AGENT_HOME/.local/bin" \
+    pipx install --force "${GIT_MCP_PACKAGE:?GIT_MCP_PACKAGE is required}"
 
 test -x "$AGENT_HOME/.local/bin/opencode"
 test -x "$AGENT_HOME/.local/bin/mcp-server-git"
@@ -69,7 +75,7 @@ installed_opencode="$("$AGENT_HOME/.local/bin/opencode" --version | tr -d '[:spa
 }
 
 installed_git_mcp="$(sudo -u "$AGENT_USER" -H \
-    "$AGENT_HOME/.local/share/uv/tools/mcp-server-git/bin/python" -c \
+    "$AGENT_HOME/.local/share/pipx/venvs/mcp-server-git/bin/python" -c \
     'import importlib.metadata; print(importlib.metadata.version("mcp-server-git"))')"
 [ "$installed_git_mcp" = "$GIT_MCP_EXPECTED_VERSION" ] || {
     printf 'Git MCP version mismatch: expected %s, got %s\n' \
diff --git a/image/provision/database.sh b/image/provision/database.sh
new file mode 100755
index 0000000..c6d15da
--- /dev/null
+++ b/image/provision/database.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+export DEBIAN_FRONTEND=noninteractive
+
+apt-get update
+apt-get install -y --no-install-recommends \
+    mariadb-client \
+    postgresql-client \
+    sqlite3
+
+mariadb --version
+psql --version
+sqlite3 --version
diff --git a/image/provision/finalize.sh b/image/provision/finalize.sh
index 3989794..a4eedda 100755
--- a/image/provision/finalize.sh
+++ b/image/provision/finalize.sh
@@ -19,7 +19,7 @@ jq -n \
   --arg built_at "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
   --arg os "$os_label" \
   --arg opencode "$(sudo -u "$AGENT_USER" -H "$AGENT_HOME/.local/bin/opencode" --version 2>/dev/null || true)" \
-  --arg git_mcp "$(sudo -u "$AGENT_USER" -H "$AGENT_HOME/.local/share/uv/tools/mcp-server-git/bin/python" -c 'import importlib.metadata; print(importlib.metadata.version("mcp-server-git"))' 2>/dev/null || true)" \
+  --arg git_mcp "$(sudo -u "$AGENT_USER" -H "$AGENT_HOME/.local/share/pipx/venvs/mcp-server-git/bin/python" -c 'import importlib.metadata; print(importlib.metadata.version("mcp-server-git"))' 2>/dev/null || true)" \
   --arg node "$(node --version 2>/dev/null || true)" \
   --arg php "$(php -r 'echo PHP_VERSION;' 2>/dev/null || true)" \
   --arg python "$(python3 --version 2>/dev/null || true)" \
@@ -51,6 +51,18 @@ rm -rf \
   "$AGENT_HOME/.bash_history"
 
 find "$AGENT_HOME" -type f \( -name '*.token' -o -name '*.secret' -o -name '.git-credentials' \) -delete
+cloud-init clean --logs --seed || true
+rm -f /etc/ssh/ssh_host_*
+rm -f /var/lib/systemd/random-seed
+rm -f /var/lib/dbus/machine-id
+: > /etc/machine-id
+journalctl --rotate >/dev/null 2>&1 || true
+journalctl --vacuum-time=1s >/dev/null 2>&1 || true
+rm -rf \
+  /var/log/journal/* \
+  /var/lib/cloud/instances/* \
+  /var/lib/dhcp/* \
+  /opt/vdm-build
 apt-get clean
 rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 chown -R "$AGENT_USER:$AGENT_USER" "$AGENT_HOME" /workspace
diff --git a/image/provision/full.sh b/image/provision/full.sh
deleted file mode 100755
index b557204..0000000
--- a/image/provision/full.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/usr/bin/env bash
-set -Eeuo pipefail
-SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
-"$SCRIPT_DIR/php.sh"
-"$SCRIPT_DIR/python.sh"
-"$SCRIPT_DIR/cpp.sh"
-"$SCRIPT_DIR/typescript.sh"
-apt-get install -y --no-install-recommends openjdk-21-jdk
diff --git a/image/provision/php.sh b/image/provision/php.sh
index f678da5..c82325e 100755
--- a/image/provision/php.sh
+++ b/image/provision/php.sh
@@ -5,7 +5,6 @@ export DEBIAN_FRONTEND=noninteractive
 apt-get update
 apt-get install -y --no-install-recommends \
     composer \
-    mariadb-client \
     php-cli \
     php-bcmath \
     php-curl \
diff --git a/image/provision/typescript.sh b/image/provision/typescript.sh
index 2788dc3..de5bac9 100755
--- a/image/provision/typescript.sh
+++ b/image/provision/typescript.sh
@@ -1,29 +1,10 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
-export DEBIAN_FRONTEND=noninteractive
 
 corepack enable
 npm install --global \
     "${TYPESCRIPT_PACKAGE:?TYPESCRIPT_PACKAGE is required}" \
-    "${TSX_PACKAGE:?TSX_PACKAGE is required}" \
-    "${PLAYWRIGHT_MCP_PACKAGE:?PLAYWRIGHT_MCP_PACKAGE is required}" \
-    "${PLAYWRIGHT_PACKAGE:?PLAYWRIGHT_PACKAGE is required}"
-install -d -m 0755 /opt/ms-playwright
-PLAYWRIGHT_BROWSERS_PATH=/opt/ms-playwright npx playwright install --with-deps chromium
-
-playwright_mcp_path="$(command -v playwright-mcp)"
-ln -sfn "$playwright_mcp_path" /usr/local/bin/vdm-playwright-mcp
+    "${TSX_PACKAGE:?TSX_PACKAGE is required}"
 
 [ "$(tsc --version | awk '{print $2}')" = "$TYPESCRIPT_EXPECTED_VERSION" ]
 [ "$(tsx --version | awk 'NR == 1 {print $2}')" = "$TSX_EXPECTED_VERSION" ]
-[ "$(playwright --version | awk '{print $2}')" = "$PLAYWRIGHT_EXPECTED_VERSION" ]
-
-installed_mcp="$(npm list --global --json --depth=0 | jq -r '.dependencies["@playwright/mcp"].version')"
-[ "$installed_mcp" = "$PLAYWRIGHT_MCP_EXPECTED_VERSION" ]
-test -x /usr/local/bin/vdm-playwright-mcp
-
-CONFIG=/home/opencode/.config/opencode/opencode.json
-tmp="$(mktemp)"
-jq '.mcp.playwright.enabled = true' "$CONFIG" > "$tmp"
-install -o opencode -g opencode -m 0640 "$tmp" "$CONFIG"
-rm -f "$tmp"
diff --git a/incus/acls/generated/brokered.yaml b/incus/acls/generated/brokered.yaml
new file mode 100644
index 0000000..d1a779b
--- /dev/null
+++ b/incus/acls/generated/brokered.yaml
@@ -0,0 +1,20 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: brokered'
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Runtime DNS
+    destination: 10.248.18.1/32
+    protocol: udp
+    destination_port: '53'
+  - action: allow
+    description: Runtime DNS over TCP
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '53'
+  - action: allow
+    description: Capability gateway
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '443'
diff --git a/incus/acls/generated/connected.yaml b/incus/acls/generated/connected.yaml
new file mode 100644
index 0000000..2848980
--- /dev/null
+++ b/incus/acls/generated/connected.yaml
@@ -0,0 +1,43 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: connected'
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Runtime DNS
+    destination: 10.248.18.1/32
+    protocol: udp
+    destination_port: '53'
+  - action: allow
+    description: Runtime DNS over TCP
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '53'
+  - action: allow
+    description: Capability gateway
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '443'
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 10.0.0.0/8
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 100.64.0.0/10
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 127.0.0.0/8
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 169.254.0.0/16
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 172.16.0.0/12
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 192.168.0.0/16
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 224.0.0.0/4
+  - action: allow
+    description: Public IPv4 Internet
diff --git a/incus/acls/generated/lab.yaml b/incus/acls/generated/lab.yaml
new file mode 100644
index 0000000..32cdcea
--- /dev/null
+++ b/incus/acls/generated/lab.yaml
@@ -0,0 +1,7 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: lab'
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Experimental lab egress
diff --git a/incus/acls/generated/offline.yaml b/incus/acls/generated/offline.yaml
new file mode 100644
index 0000000..63de650
--- /dev/null
+++ b/incus/acls/generated/offline.yaml
@@ -0,0 +1,5 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: offline'
+config: {}
+ingress: []
+egress: []
diff --git a/incus/acls/generated/release.yaml b/incus/acls/generated/release.yaml
new file mode 100644
index 0000000..edbd57a
--- /dev/null
+++ b/incus/acls/generated/release.yaml
@@ -0,0 +1,25 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: release'
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Runtime DNS
+    destination: 10.248.18.1/32
+    protocol: udp
+    destination_port: '53'
+  - action: allow
+    description: Runtime DNS over TCP
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '53'
+  - action: allow
+    description: Capability gateway
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '443'
+  - action: allow
+    description: Release HTTP CONNECT proxy
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '3129'
diff --git a/incus/acls/generated/restricted.yaml b/incus/acls/generated/restricted.yaml
new file mode 100644
index 0000000..50ac032
--- /dev/null
+++ b/incus/acls/generated/restricted.yaml
@@ -0,0 +1,25 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM generated egress policy: restricted'
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Runtime DNS
+    destination: 10.248.18.1/32
+    protocol: udp
+    destination_port: '53'
+  - action: allow
+    description: Runtime DNS over TCP
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '53'
+  - action: allow
+    description: Capability gateway
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '443'
+  - action: allow
+    description: Restricted HTTP CONNECT proxy
+    destination: 10.248.18.1/32
+    protocol: tcp
+    destination_port: '3128'
diff --git a/incus/acls/vdm-agent-runtime.yaml b/incus/acls/vdm-agent-runtime.yaml
deleted file mode 100644
index 86f3368..0000000
--- a/incus/acls/vdm-agent-runtime.yaml
+++ /dev/null
@@ -1,6 +0,0 @@
-description: Baseline runtime ACL; strict egress must be enforced by the company gateway or firewall
-config: {}
-ingress: []
-egress:
-  - action: allow
-    description: Transitional allow rule; replace with gateway-only destinations before production
diff --git a/incus/acls/vdm-build.yaml b/incus/acls/vdm-build.yaml
new file mode 100644
index 0000000..98f1536
--- /dev/null
+++ b/incus/acls/vdm-build.yaml
@@ -0,0 +1,37 @@
+description: Public build egress with host, private, metadata, and management networks denied
+config: {}
+ingress: []
+egress:
+  - action: allow
+    description: Build bridge DNS
+    destination: 10.248.17.1/32
+    protocol: udp
+    destination_port: "53"
+  - action: allow
+    description: Build bridge DNS over TCP
+    destination: 10.248.17.1/32
+    protocol: tcp
+    destination_port: "53"
+  - action: reject
+    description: Deny private or special-use IPv4
+    destination: 10.0.0.0/8
+  - action: reject
+    description: Deny carrier-grade NAT
+    destination: 100.64.0.0/10
+  - action: reject
+    description: Deny loopback
+    destination: 127.0.0.0/8
+  - action: reject
+    description: Deny link-local and metadata
+    destination: 169.254.0.0/16
+  - action: reject
+    description: Deny private IPv4
+    destination: 172.16.0.0/12
+  - action: reject
+    description: Deny private IPv4
+    destination: 192.168.0.0/16
+  - action: reject
+    description: Deny multicast and reserved IPv4
+    destination: 224.0.0.0/4
+  - action: allow
+    description: Public IPv4 package sources
diff --git a/incus/profiles/base.yaml b/incus/profiles/base.yaml
deleted file mode 100644
index 13370ae..0000000
--- a/incus/profiles/base.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: General OpenCode VM
-config:
-  limits.cpu: "4"
-  limits.memory: 8GiB
-  security.secureboot: "true"
-  user.vdm.variant: base
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 80GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/profiles/cpp.yaml b/incus/profiles/cpp.yaml
deleted file mode 100644
index 7f6ce5f..0000000
--- a/incus/profiles/cpp.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: C and C++ OpenCode VM
-config:
-  limits.cpu: "12"
-  limits.memory: 24GiB
-  security.secureboot: "true"
-  user.vdm.variant: cpp
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 140GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/profiles/full.yaml b/incus/profiles/full.yaml
deleted file mode 100644
index 554c17a..0000000
--- a/incus/profiles/full.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: Mixed-language OpenCode VM
-config:
-  limits.cpu: "16"
-  limits.memory: 32GiB
-  security.secureboot: "true"
-  user.vdm.variant: full
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 200GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/profiles/generated/images/base.yaml b/incus/profiles/generated/images/base.yaml
new file mode 100644
index 0000000..d4c2538
--- /dev/null
+++ b/incus/profiles/generated/images/base.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: General repository analysis, shell work, and documentation.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: base
+devices: {}
diff --git a/incus/profiles/generated/images/cpp.yaml b/incus/profiles/generated/images/cpp.yaml
new file mode 100644
index 0000000..120f997
--- /dev/null
+++ b/incus/profiles/generated/images/cpp.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: Native C and C++ systems, graphics, and Linux tooling.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: cpp
+devices: {}
diff --git a/incus/profiles/generated/images/full.yaml b/incus/profiles/generated/images/full.yaml
new file mode 100644
index 0000000..271a07d
--- /dev/null
+++ b/incus/profiles/generated/images/full.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: Mixed-language platform engineering.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: full
+devices: {}
diff --git a/incus/profiles/generated/images/php.yaml b/incus/profiles/generated/images/php.yaml
new file mode 100644
index 0000000..d194f95
--- /dev/null
+++ b/incus/profiles/generated/images/php.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: Joomla, JCB, PHP, TypeScript, database, and browser work.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: php
+devices: {}
diff --git a/incus/profiles/generated/images/python.yaml b/incus/profiles/generated/images/python.yaml
new file mode 100644
index 0000000..8271225
--- /dev/null
+++ b/incus/profiles/generated/images/python.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: Python services, MCP servers, automation, and data tooling.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: python
+devices: {}
diff --git a/incus/profiles/generated/images/typescript.yaml b/incus/profiles/generated/images/typescript.yaml
new file mode 100644
index 0000000..aa8f35b
--- /dev/null
+++ b/incus/profiles/generated/images/typescript.yaml
@@ -0,0 +1,6 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: Node.js, TypeScript, frontend, and browser automation.
+config:
+  security.secureboot: 'true'
+  user.vdm.variant: typescript
+devices: {}
diff --git a/incus/profiles/generated/policies/brokered.yaml b/incus/profiles/generated/policies/brokered.yaml
new file mode 100644
index 0000000..31b9a56
--- /dev/null
+++ b/incus/profiles/generated/policies/brokered.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: brokered'
+config:
+  user.vdm.policy: brokered
+  user.vdm.policy.status: blocked
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-brokered
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/policies/connected.yaml b/incus/profiles/generated/policies/connected.yaml
new file mode 100644
index 0000000..40ff690
--- /dev/null
+++ b/incus/profiles/generated/policies/connected.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: connected'
+config:
+  user.vdm.policy: connected
+  user.vdm.policy.status: ready
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-connected
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/policies/lab.yaml b/incus/profiles/generated/policies/lab.yaml
new file mode 100644
index 0000000..9043028
--- /dev/null
+++ b/incus/profiles/generated/policies/lab.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: lab'
+config:
+  user.vdm.policy: lab
+  user.vdm.policy.status: experimental
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-lab
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/policies/offline.yaml b/incus/profiles/generated/policies/offline.yaml
new file mode 100644
index 0000000..f71445d
--- /dev/null
+++ b/incus/profiles/generated/policies/offline.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: offline'
+config:
+  user.vdm.policy: offline
+  user.vdm.policy.status: ready
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-offline
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/policies/release.yaml b/incus/profiles/generated/policies/release.yaml
new file mode 100644
index 0000000..ea9c36d
--- /dev/null
+++ b/incus/profiles/generated/policies/release.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: release'
+config:
+  user.vdm.policy: release
+  user.vdm.policy.status: blocked
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-release
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/policies/restricted.yaml b/incus/profiles/generated/policies/restricted.yaml
new file mode 100644
index 0000000..2f39dc3
--- /dev/null
+++ b/incus/profiles/generated/policies/restricted.yaml
@@ -0,0 +1,14 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM network policy: restricted'
+config:
+  user.vdm.policy: restricted
+  user.vdm.policy.status: blocked
+devices:
+  eth0:
+    type: nic
+    name: eth0
+    network: vdm-agentbr0
+    security.acls: vdm-agent-restricted
+    security.acls.default.ingress.action: reject
+    security.acls.default.egress.action: reject
+    security.ipv4_filtering: 'true'
diff --git a/incus/profiles/generated/sizes/builder.yaml b/incus/profiles/generated/sizes/builder.yaml
new file mode 100644
index 0000000..d312328
--- /dev/null
+++ b/incus/profiles/generated/sizes/builder.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: builder'
+config:
+  limits.cpu: '24'
+  limits.memory: 64GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 500GiB
diff --git a/incus/profiles/generated/sizes/large.yaml b/incus/profiles/generated/sizes/large.yaml
new file mode 100644
index 0000000..2aa08ff
--- /dev/null
+++ b/incus/profiles/generated/sizes/large.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: large'
+config:
+  limits.cpu: '12'
+  limits.memory: 24GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 160GiB
diff --git a/incus/profiles/generated/sizes/medium.yaml b/incus/profiles/generated/sizes/medium.yaml
new file mode 100644
index 0000000..405bdc5
--- /dev/null
+++ b/incus/profiles/generated/sizes/medium.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: medium'
+config:
+  limits.cpu: '6'
+  limits.memory: 12GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 100GiB
diff --git a/incus/profiles/generated/sizes/small.yaml b/incus/profiles/generated/sizes/small.yaml
new file mode 100644
index 0000000..4f557ce
--- /dev/null
+++ b/incus/profiles/generated/sizes/small.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: small'
+config:
+  limits.cpu: '4'
+  limits.memory: 8GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 80GiB
diff --git a/incus/profiles/generated/sizes/standard.yaml b/incus/profiles/generated/sizes/standard.yaml
new file mode 100644
index 0000000..5e053fc
--- /dev/null
+++ b/incus/profiles/generated/sizes/standard.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: standard'
+config:
+  limits.cpu: '8'
+  limits.memory: 16GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 120GiB
diff --git a/incus/profiles/generated/sizes/tiny.yaml b/incus/profiles/generated/sizes/tiny.yaml
new file mode 100644
index 0000000..e6eb53c
--- /dev/null
+++ b/incus/profiles/generated/sizes/tiny.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: tiny'
+config:
+  limits.cpu: '2'
+  limits.memory: 4GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 40GiB
diff --git a/incus/profiles/generated/sizes/xlarge.yaml b/incus/profiles/generated/sizes/xlarge.yaml
new file mode 100644
index 0000000..7c8bc84
--- /dev/null
+++ b/incus/profiles/generated/sizes/xlarge.yaml
@@ -0,0 +1,11 @@
+# Generated from manifest/images.yaml. Do not edit.
+description: 'VDM resource class: xlarge'
+config:
+  limits.cpu: '16'
+  limits.memory: 32GiB
+devices:
+  root:
+    type: disk
+    path: /
+    pool: default
+    size: 240GiB
diff --git a/incus/profiles/php.yaml b/incus/profiles/php.yaml
deleted file mode 100644
index 38561c7..0000000
--- a/incus/profiles/php.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: PHP, Joomla and JCB OpenCode VM
-config:
-  limits.cpu: "8"
-  limits.memory: 16GiB
-  security.secureboot: "true"
-  user.vdm.variant: php
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 120GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/profiles/python.yaml b/incus/profiles/python.yaml
deleted file mode 100644
index f18c156..0000000
--- a/incus/profiles/python.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: Python and MCP OpenCode VM
-config:
-  limits.cpu: "8"
-  limits.memory: 16GiB
-  security.secureboot: "true"
-  user.vdm.variant: python
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 100GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/profiles/typescript.yaml b/incus/profiles/typescript.yaml
deleted file mode 100644
index 9500078..0000000
--- a/incus/profiles/typescript.yaml
+++ /dev/null
@@ -1,19 +0,0 @@
-description: TypeScript and browser OpenCode VM
-config:
-  limits.cpu: "8"
-  limits.memory: 16GiB
-  security.secureboot: "true"
-  user.vdm.variant: typescript
-devices:
-  root:
-    type: disk
-    path: /
-    pool: default
-    size: 120GiB
-  eth0:
-    type: nic
-    name: eth0
-    network: vdm-agentbr0
-    security.acls: vdm-agent-runtime
-    security.acls.default.ingress.action: reject
-    security.acls.default.egress.action: allow
diff --git a/incus/projects/vdm-agents.yaml b/incus/projects/vdm-agents.yaml
index c13dedc..03f8445 100644
--- a/incus/projects/vdm-agents.yaml
+++ b/incus/projects/vdm-agents.yaml
@@ -4,3 +4,16 @@ config:
   features.networks: "true"
   features.profiles: "true"
   features.storage.volumes: "true"
+  restricted: "true"
+  restricted.devices.disk: managed
+  restricted.devices.nic: managed
+  restricted.networks.access: vdm-buildbr0,vdm-agentbr0
+  restricted.devices.gpu: block
+  restricted.devices.infiniband: block
+  restricted.devices.pci: block
+  restricted.devices.proxy: block
+  restricted.devices.unix-block: block
+  restricted.devices.unix-char: block
+  restricted.devices.unix-hotplug: block
+  restricted.devices.usb: block
+  restricted.virtual-machines.lowlevel: block
diff --git a/manifest/generated/platform.env b/manifest/generated/platform.env
new file mode 100644
index 0000000..7585216
--- /dev/null
+++ b/manifest/generated/platform.env
@@ -0,0 +1,72 @@
+# Generated from manifest/images.yaml. Do not edit.
+PLATFORM_NAME=vdm-opencode-platform
+PLATFORM_VERSION=0.3.0-rc.1
+INCUS_BASE_IMAGE=images:ubuntu/24.04/cloud
+INCUS_IMAGE_PREFIX=vdm-opencode
+PLATFORM_IMAGES=(base php python cpp typescript full)
+PLATFORM_RELEASE_IMAGES=(base php python cpp typescript full)
+PLATFORM_RELEASE_ARCHITECTURES=(amd64)
+
+declare -Ag PLATFORM_ARCH_ALIASES=(
+    [x86_64]=amd64
+    [amd64]=amd64
+    [aarch64]=arm64
+    [arm64]=arm64
+)
+
+declare -Ag PLATFORM_IMAGE_COMPONENTS=(
+    [base]=shell
+    [php]='shell php node typescript browser database'
+    [python]='shell python'
+    [cpp]='shell native'
+    [typescript]='shell node typescript browser'
+    [full]='shell php python node typescript native browser database'
+)
+
+declare -Ag PLATFORM_IMAGE_DEFAULT_POLICY=(
+    [base]=connected
+    [php]=connected
+    [python]=connected
+    [cpp]=connected
+    [typescript]=connected
+    [full]=connected
+)
+
+declare -Ag PLATFORM_IMAGE_DEFAULT_SIZE=(
+    [base]=small
+    [php]=standard
+    [python]=standard
+    [cpp]=large
+    [typescript]=standard
+    [full]=xlarge
+)
+
+declare -Ag PLATFORM_COMPONENT_PROVISION=(
+    [shell]=''
+    [php]=php.sh
+    [python]=python.sh
+    [node]=''
+    [typescript]=typescript.sh
+    [native]=cpp.sh
+    [browser]=browser.sh
+    [database]=database.sh
+)
+
+declare -Ag PLATFORM_POLICY_STATUS=(
+    [offline]=ready
+    [brokered]=blocked
+    [restricted]=blocked
+    [connected]=ready
+    [release]=blocked
+    [lab]=experimental
+)
+
+declare -Ag PLATFORM_SIZE_CPUS=(
+    [tiny]=2
+    [small]=4
+    [medium]=6
+    [standard]=8
+    [large]=12
+    [xlarge]=16
+    [builder]=24
+)
diff --git a/manifest/images.yaml b/manifest/images.yaml
index 0d60906..9861a2f 100644
--- a/manifest/images.yaml
+++ b/manifest/images.yaml
@@ -1,47 +1,222 @@
-schema: 1
-platform: vdm-opencode-platform
-version: 0.1.0
-base_image: images:ubuntu/24.04/cloud
-variants:
+schema: 2
+
+platform:
+  name: vdm-opencode-platform
+  version: 0.3.0-rc.1
+  image_prefix: vdm-opencode
+  base_image: images:ubuntu/24.04/cloud
+  architectures:
+    amd64:
+      aliases: [x86_64, amd64]
+      release: true
+    arm64:
+      aliases: [aarch64, arm64]
+      release: false
+  license: GPL-3.0-only
+  copyright:
+    holder: Vast Development Method
+    year: 2026
+
+components:
+  shell: {status: ready, provision: null}
+  php: {status: ready, provision: php.sh}
+  python: {status: ready, provision: python.sh}
+  node: {status: ready, provision: null}
+  typescript: {status: ready, provision: typescript.sh}
+  native: {status: ready, provision: cpp.sh}
+  browser: {status: ready, provision: browser.sh}
+  database: {status: ready, provision: database.sh}
+  android: {status: planned, provision: android.sh}
+  gpu: {status: planned, provision: null}
+  containers: {status: planned, provision: containers.sh}
+  gui: {status: planned, provision: gui.sh}
+  audio: {status: planned, provision: audio.sh}
+  security: {status: planned, provision: security.sh}
+
+dimensions:
+  languages:
+    shell:
+      label: Bash and POSIX shell
+      status: ready
+      requires: []
+      components: [shell]
+    php:
+      label: PHP
+      status: ready
+      requires: [shell]
+      components: [php]
+    python:
+      label: Python
+      status: ready
+      requires: [shell]
+      components: [python]
+    node:
+      label: Node.js
+      status: ready
+      requires: [shell]
+      components: [node]
+    typescript:
+      label: TypeScript
+      status: ready
+      requires: [node]
+      components: [typescript]
+    c:
+      label: C
+      status: ready
+      requires: [shell]
+      components: [native]
+    cpp:
+      label: C++
+      status: ready
+      requires: [c]
+      components: [native]
+
+  capabilities:
+    cpu:
+      label: CPU execution
+      phase: runtime
+      status: ready
+      components: []
+    browser:
+      label: Chromium and Playwright
+      phase: build
+      status: ready
+      components: [browser]
+    database:
+      label: Database clients
+      phase: build
+      status: ready
+      components: [database]
+    android:
+      label: Android SDK and device tooling
+      phase: build
+      status: planned
+      components: [android]
+    gpu:
+      label: GPU acceleration
+      phase: runtime
+      status: planned
+      components: [gpu]
+    containers:
+      label: Rootless container tooling
+      phase: both
+      status: planned
+      components: [containers]
+    gui:
+      label: Graphical application testing
+      phase: both
+      status: planned
+      components: [gui]
+    audio:
+      label: Audio capture and processing
+      phase: both
+      status: planned
+      components: [audio]
+    security:
+      label: Security analysis tooling
+      phase: build
+      status: planned
+      components: [security]
+
+  policies:
+    offline:
+      label: No network
+      status: ready
+      ingress: reject
+      egress: reject
+      credentials: none
+      require_gateway: false
+    brokered:
+      label: Broker-only network
+      status: blocked
+      ingress: reject
+      egress: reject
+      credentials: brokered
+      require_gateway: true
+    restricted:
+      label: Allowlisted network
+      status: blocked
+      ingress: reject
+      egress: reject
+      credentials: scoped
+      require_gateway: true
+    connected:
+      label: Public Internet with private networks denied
+      status: ready
+      ingress: reject
+      egress: allow
+      credentials: session
+      require_gateway: false
+    release:
+      label: Release publishing
+      status: blocked
+      ingress: reject
+      egress: reject
+      credentials: release
+      require_gateway: true
+    lab:
+      label: Privileged hardware lab
+      status: experimental
+      ingress: reject
+      egress: allow
+      credentials: none
+      require_gateway: false
+
+  sizes:
+    tiny: {cpus: 2, memory: 4GiB, disk: 40GiB}
+    small: {cpus: 4, memory: 8GiB, disk: 80GiB}
+    medium: {cpus: 6, memory: 12GiB, disk: 100GiB}
+    standard: {cpus: 8, memory: 16GiB, disk: 120GiB}
+    large: {cpus: 12, memory: 24GiB, disk: 160GiB}
+    xlarge: {cpus: 16, memory: 32GiB, disk: 240GiB}
+    builder: {cpus: 24, memory: 64GiB, disk: 500GiB}
+
+images:
   base:
-    alias: vdm-opencode-base
-    cpus: 4
-    memory: 8GiB
-    disk: 80GiB
-    purpose: General repository analysis and documentation.
-    browser_mcp: false
+    purpose: General repository analysis, shell work, and documentation.
+    status: ready
+    release: true
+    languages: [shell]
+    capabilities: [cpu]
+    default_policy: connected
+    default_size: small
   php:
-    alias: vdm-opencode-php
-    cpus: 8
-    memory: 16GiB
-    disk: 120GiB
-    purpose: Joomla, JCB, PHP and Composer projects.
-    browser_mcp: true
+    purpose: Joomla, JCB, PHP, TypeScript, database, and browser work.
+    status: ready
+    release: true
+    languages: [shell, php, node, typescript]
+    capabilities: [cpu, browser, database]
+    default_policy: connected
+    default_size: standard
   python:
-    alias: vdm-opencode-python
-    cpus: 8
-    memory: 16GiB
-    disk: 100GiB
-    purpose: Python services, MCP servers and automation.
-    browser_mcp: false
+    purpose: Python services, MCP servers, automation, and data tooling.
+    status: ready
+    release: true
+    languages: [shell, python]
+    capabilities: [cpu]
+    default_policy: connected
+    default_size: standard
   cpp:
-    alias: vdm-opencode-cpp
-    cpus: 12
-    memory: 24GiB
-    disk: 140GiB
-    purpose: Native C and C++ systems, graphics and Linux tooling.
-    browser_mcp: false
+    purpose: Native C and C++ systems, graphics, and Linux tooling.
+    status: ready
+    release: true
+    languages: [shell, c, cpp]
+    capabilities: [cpu]
+    default_policy: connected
+    default_size: large
   typescript:
-    alias: vdm-opencode-typescript
-    cpus: 8
-    memory: 16GiB
-    disk: 120GiB
-    purpose: TypeScript, Node.js, frontend and browser testing.
-    browser_mcp: true
+    purpose: Node.js, TypeScript, frontend, and browser automation.
+    status: ready
+    release: true
+    languages: [shell, node, typescript]
+    capabilities: [cpu, browser]
+    default_policy: connected
+    default_size: standard
   full:
-    alias: vdm-opencode-full
-    cpus: 16
-    memory: 32GiB
-    disk: 200GiB
     purpose: Mixed-language platform engineering.
-    browser_mcp: true
+    status: ready
+    release: true
+    languages: [shell, php, python, node, typescript, c, cpp]
+    capabilities: [cpu, browser, database]
+    default_policy: connected
+    default_size: xlarge
diff --git a/manifest/mcp-catalog.yaml b/manifest/mcp-catalog.yaml
old mode 100755
new mode 100644
diff --git a/manifest/platform.env b/manifest/platform.env
old mode 100755
new mode 100644
index 44efae7..389f153
--- a/manifest/platform.env
+++ b/manifest/platform.env
@@ -1,13 +1,7 @@
-PLATFORM_NAME="${PLATFORM_NAME:-vdm-opencode-platform}"
-PLATFORM_VERSION="${PLATFORM_VERSION:-0.2.0}"
-
 INCUS_PROJECT="${INCUS_PROJECT:-vdm-agents}"
 INCUS_BUILD_NETWORK="${INCUS_BUILD_NETWORK:-vdm-buildbr0}"
 INCUS_RUNTIME_NETWORK="${INCUS_RUNTIME_NETWORK:-vdm-agentbr0}"
-INCUS_RUNTIME_ACL="${INCUS_RUNTIME_ACL:-vdm-agent-runtime}"
 
-INCUS_BASE_IMAGE="${INCUS_BASE_IMAGE:-images:ubuntu/24.04/cloud}"
-INCUS_IMAGE_PREFIX="${INCUS_IMAGE_PREFIX:-vdm-opencode}"
 INCUS_STORAGE_POOL="${INCUS_STORAGE_POOL:-}"
 INCUS_DEFAULT_ROOT_SIZE="${INCUS_DEFAULT_ROOT_SIZE:-80GiB}"
 
diff --git a/manifest/sources.lock.yaml b/manifest/sources.lock.yaml
old mode 100755
new mode 100644
diff --git a/manifest/toolchain.env b/manifest/toolchain.env
old mode 100755
new mode 100644
index 0572019..9448102
--- a/manifest/toolchain.env
+++ b/manifest/toolchain.env
@@ -1,13 +1,13 @@
-# Approved package versions for platform release 0.2.0.
+# Approved package versions for platform release 0.3.0-rc.1.
 # Update these values deliberately and validate every image before promotion.
 
 OPENCODE_PACKAGE=opencode-ai@1.18.4
 OPENCODE_EXPECTED_VERSION=1.18.4
 
 NODE_MAJOR=22
+NODESOURCE_SETUP_SHA256=575583bbac2fccc0b5edd0dbc03e222d9f9dc8d724da996d22754d6411104fd1
 PHP_MAJOR=8.3
 PYTHON_MAJOR=3.12
-JAVA_MAJOR=21
 
 GIT_MCP_PACKAGE=mcp-server-git==2026.7.10
 GIT_MCP_EXPECTED_VERSION=2026.7.10
diff --git a/scripts/apply-incus.sh b/scripts/apply-incus.sh
index e09157a..9e6eb81 100755
--- a/scripts/apply-incus.sh
+++ b/scripts/apply-incus.sh
@@ -24,23 +24,46 @@ apply_network() {
 apply_network "$INCUS_BUILD_NETWORK" "$ROOT_DIR/incus/networks/vdm-buildbr0.yaml"
 apply_network "$INCUS_RUNTIME_NETWORK" "$ROOT_DIR/incus/networks/vdm-agentbr0.yaml"
 
-if ! project_cmd network acl show "$INCUS_RUNTIME_ACL" >/dev/null 2>&1; then
-    project_cmd network acl create "$INCUS_RUNTIME_ACL"
-fi
-project_cmd network acl edit "$INCUS_RUNTIME_ACL" < "$ROOT_DIR/incus/acls/vdm-agent-runtime.yaml"
+apply_acl() {
+    local name="$1"
+    local file="$2"
+    if ! project_cmd network acl show "$name" >/dev/null 2>&1; then
+        project_cmd network acl create "$name"
+    fi
+    project_cmd network acl edit "$name" < "$file"
+}
 
-for variant in base php python cpp typescript full; do
-    profile="vdm-opencode-${variant}"
+apply_acl vdm-build "$ROOT_DIR/incus/acls/vdm-build.yaml"
+for policy_file in "$ROOT_DIR"/incus/acls/generated/*.yaml; do
+    policy="$(basename "$policy_file" .yaml)"
+    apply_acl "vdm-agent-$policy" "$policy_file"
+done
+
+apply_profile() {
+    local profile="$1"
+    local profile_file="$2"
     if ! project_cmd profile show "$profile" >/dev/null 2>&1; then
         project_cmd profile create "$profile"
     fi
 
-    profile_file="$ROOT_DIR/incus/profiles/${variant}.yaml"
     if [ -n "${INCUS_STORAGE_POOL:-}" ]; then
         sed "s/pool: default/pool: ${INCUS_STORAGE_POOL}/" "$profile_file" | project_cmd profile edit "$profile"
     else
         project_cmd profile edit "$profile" < "$profile_file"
     fi
+}
+
+for profile_file in "$ROOT_DIR"/incus/profiles/generated/images/*.yaml; do
+    name="$(basename "$profile_file" .yaml)"
+    apply_profile "vdm-opencode-$name" "$profile_file"
+done
+for profile_file in "$ROOT_DIR"/incus/profiles/generated/sizes/*.yaml; do
+    name="$(basename "$profile_file" .yaml)"
+    apply_profile "vdm-size-$name" "$profile_file"
+done
+for profile_file in "$ROOT_DIR"/incus/profiles/generated/policies/*.yaml; do
+    name="$(basename "$profile_file" .yaml)"
+    apply_profile "vdm-policy-$name" "$profile_file"
 done
 
 log "Incus project definition applied"
diff --git a/scripts/bootstrap-host.sh b/scripts/bootstrap-host.sh
index cba4578..c4f76bc 100755
--- a/scripts/bootstrap-host.sh
+++ b/scripts/bootstrap-host.sh
@@ -19,6 +19,8 @@ sudo DEBIAN_FRONTEND=noninteractive apt-get install -y \
     curl \
     incus \
     jq \
+    python3-yaml \
+    qemu-system \
     shellcheck \
     yamllint \
     zstd
@@ -35,4 +37,5 @@ if ! incus_cmd remote list --format csv | cut -d, -f1 | grep -qx images; then
 fi
 
 "$SCRIPT_DIR/apply-incus.sh"
+"$SCRIPT_DIR/install-host-units.sh"
 log "Host bootstrap complete"
diff --git a/scripts/build-all-images.sh b/scripts/build-all-images.sh
index d3cbbe4..daf6b94 100755
--- a/scripts/build-all-images.sh
+++ b/scripts/build-all-images.sh
@@ -1,6 +1,8 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
-for variant in base php python cpp typescript full; do
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/lib/common.sh"
+for variant in "${PLATFORM_RELEASE_IMAGES[@]}"; do
     "$SCRIPT_DIR/build-image.sh" "$variant"
 done
diff --git a/scripts/build-image.sh b/scripts/build-image.sh
index ab20518..847fabb 100755
--- a/scripts/build-image.sh
+++ b/scripts/build-image.sh
@@ -5,7 +5,7 @@ SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 source "$SCRIPT_DIR/lib/common.sh"
 
 VARIANT="${1:-}"
-variant_exists "$VARIANT" || die "Variant must be one of: base php python cpp typescript full"
+variant_exists "$VARIANT" || die "Variant must be one of: ${PLATFORM_IMAGES[*]}"
 
 "$SCRIPT_DIR/apply-incus.sh"
 
@@ -18,10 +18,19 @@ cleanup() {
 trap cleanup EXIT
 
 log "Creating build VM $BUILD_NAME"
-project_cmd init "$INCUS_BASE_IMAGE" "$BUILD_NAME" --vm --profile "vdm-opencode-${VARIANT}"
+project_cmd init "$INCUS_BASE_IMAGE" "$BUILD_NAME" --vm \
+    --profile "vdm-opencode-${VARIANT}" \
+    --profile "vdm-size-${PLATFORM_IMAGE_DEFAULT_SIZE[$VARIANT]}" \
+    --profile "vdm-policy-${PLATFORM_IMAGE_DEFAULT_POLICY[$VARIANT]}"
 
 # Builders need the broader build network. Replace the profile NIC for this temporary VM.
-project_cmd config device override "$BUILD_NAME" eth0 network="$INCUS_BUILD_NETWORK" name=eth0
+project_cmd config device override "$BUILD_NAME" eth0 \
+    network="$INCUS_BUILD_NETWORK" \
+    name=eth0 \
+    security.acls=vdm-build \
+    security.acls.default.ingress.action=reject \
+    security.acls.default.egress.action=reject \
+    security.ipv4_filtering=true
 project_cmd start "$BUILD_NAME"
 wait_for_vm "$BUILD_NAME" || die "VM agent did not become ready: $BUILD_NAME"
 
@@ -33,6 +42,7 @@ tar -C "$ROOT_DIR/image/provision" -cf - . | project_cmd exec "$BUILD_NAME" -- t
 COMMON_ENV=(
     "AGENT_USER=$AGENT_USER"
     "NODE_MAJOR=$NODE_MAJOR"
+    "NODESOURCE_SETUP_SHA256=$NODESOURCE_SETUP_SHA256"
     "OPENCODE_PACKAGE=$OPENCODE_PACKAGE"
     "OPENCODE_EXPECTED_VERSION=$OPENCODE_EXPECTED_VERSION"
     "GIT_MCP_PACKAGE=$GIT_MCP_PACKAGE"
@@ -61,16 +71,10 @@ exec_with_env() {
 }
 
 exec_with_env bash /opt/vdm-build/common.sh
-case "$VARIANT" in
-    base) ;;
-    php)
-        exec_with_env bash /opt/vdm-build/php.sh
-        exec_with_env bash /opt/vdm-build/typescript.sh
-        ;;
-    python|cpp|typescript|full)
-        exec_with_env bash "/opt/vdm-build/${VARIANT}.sh"
-        ;;
-esac
+for component in ${PLATFORM_IMAGE_COMPONENTS[$VARIANT]}; do
+    provision="${PLATFORM_COMPONENT_PROVISION[$component]:-}"
+    [[ -z "$provision" ]] || exec_with_env bash "/opt/vdm-build/$provision"
+done
 
 project_cmd exec "$BUILD_NAME" \
     --env "PLATFORM_VERSION=$PLATFORM_VERSION" \
@@ -86,5 +90,6 @@ project_cmd publish "$BUILD_NAME/sanitized" --alias "$ALIAS" --reuse
 project_cmd image set-property "$ALIAS" org.vdm.platform "$PLATFORM_NAME"
 project_cmd image set-property "$ALIAS" org.vdm.version "$PLATFORM_VERSION"
 project_cmd image set-property "$ALIAS" org.vdm.variant "$VARIANT"
+project_cmd image set-property "$ALIAS" org.vdm.architecture "$(canonical_architecture "$(uname -m)")"
 
 log "Published $ALIAS"
diff --git a/scripts/ci/check-architecture.sh b/scripts/ci/check-architecture.sh
new file mode 100755
index 0000000..bfb67fb
--- /dev/null
+++ b/scripts/ci/check-architecture.sh
@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/../lib/common.sh"
+
+EXPECTED="${1:?Usage: $0 amd64|arm64}"
+ACTUAL="$(canonical_architecture "$(uname -m)")"
+[ "$ACTUAL" = "$EXPECTED" ] || die "Runner architecture mismatch: expected $EXPECTED, got $ACTUAL"
diff --git a/scripts/generate-platform.py b/scripts/generate-platform.py
new file mode 100644
index 0000000..fc87cfe
--- /dev/null
+++ b/scripts/generate-platform.py
@@ -0,0 +1,455 @@
+#!/usr/bin/env python3
+"""Validate the platform manifest and render every derived authority file."""
+
+from __future__ import annotations
+
+import argparse
+import difflib
+import json
+import re
+import shlex
+import sys
+from collections.abc import Iterable, Mapping
+from pathlib import Path
+from typing import Any
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+MANIFEST = ROOT / "manifest/images.yaml"
+GENERATED_HEADER = "# Generated from manifest/images.yaml. Do not edit.\n"
+IDENTIFIER = re.compile(r"^[a-z][a-z0-9-]*$")
+SEMVER = re.compile(
+    r"^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)"
+    r"(?:-[0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*)?"
+    r"(?:\+[0-9A-Za-z-]+(?:\.[0-9A-Za-z-]+)*)?$"
+)
+FORBIDDEN_LANGUAGES = {"go", "java", "rust"}
+VALID_STATUS = {"ready", "experimental", "planned", "blocked"}
+
+
+class IndentedDumper(yaml.SafeDumper):
+    """Emit block sequences indented beneath their mapping key."""
+
+    def increase_indent(self, flow: bool = False, indentless: bool = False) -> None:
+        return super().increase_indent(flow, False)
+
+
+class ManifestError(ValueError):
+    """Raised when the manifest contract is invalid."""
+
+
+def require(condition: bool, message: str) -> None:
+    if not condition:
+        raise ManifestError(message)
+
+
+def require_mapping(value: Any, path: str) -> Mapping[str, Any]:
+    require(isinstance(value, Mapping), f"{path} must be a mapping")
+    return value
+
+
+def require_identifiers(values: Iterable[str], path: str) -> None:
+    for value in values:
+        require(
+            isinstance(value, str) and IDENTIFIER.fullmatch(value) is not None,
+            f"{path}.{value!s} is not a safe identifier",
+        )
+
+
+def load_manifest() -> dict[str, Any]:
+    with MANIFEST.open("r", encoding="utf-8") as stream:
+        data = yaml.safe_load(stream)
+    require(isinstance(data, dict), "manifest root must be a mapping")
+    return data
+
+
+def validate_manifest(data: Mapping[str, Any]) -> None:
+    require(data.get("schema") == 2, "schema must be 2")
+    platform = require_mapping(data.get("platform"), "platform")
+    require(platform.get("name") == "vdm-opencode-platform", "unexpected platform name")
+    version = platform.get("version")
+    require(isinstance(version, str) and SEMVER.fullmatch(version) is not None, "invalid semantic version")
+    require(platform.get("license") == "GPL-3.0-only", "license must be GPL-3.0-only")
+    copyright_data = require_mapping(platform.get("copyright"), "platform.copyright")
+    require(copyright_data.get("holder") == "Vast Development Method", "copyright holder must be Vast Development Method")
+    require(isinstance(copyright_data.get("year"), int), "copyright year must be an integer")
+
+    architectures = require_mapping(platform.get("architectures"), "platform.architectures")
+    require({"amd64", "arm64"}.issubset(architectures), "amd64 and arm64 architectures are required")
+    require_identifiers(architectures, "platform.architectures")
+    aliases: set[str] = set()
+    for name, architecture in architectures.items():
+        architecture = require_mapping(architecture, f"platform.architectures.{name}")
+        current = architecture.get("aliases")
+        require(isinstance(current, list) and current, f"architecture {name} requires aliases")
+        for alias in current:
+            require(isinstance(alias, str) and alias not in aliases, f"duplicate architecture alias: {alias}")
+            aliases.add(alias)
+        require(isinstance(architecture.get("release"), bool), f"architecture {name}.release must be boolean")
+
+    components = require_mapping(data.get("components"), "components")
+    require_identifiers(components, "components")
+    for name, component in components.items():
+        component = require_mapping(component, f"components.{name}")
+        require(component.get("status") in VALID_STATUS, f"invalid component status: {name}")
+        provision = component.get("provision")
+        require(provision is None or (isinstance(provision, str) and "/" not in provision), f"unsafe provision script: {name}")
+
+    dimensions = require_mapping(data.get("dimensions"), "dimensions")
+    languages = require_mapping(dimensions.get("languages"), "dimensions.languages")
+    capabilities = require_mapping(dimensions.get("capabilities"), "dimensions.capabilities")
+    policies = require_mapping(dimensions.get("policies"), "dimensions.policies")
+    sizes = require_mapping(dimensions.get("sizes"), "dimensions.sizes")
+    for values, path in (
+        (languages, "dimensions.languages"),
+        (capabilities, "dimensions.capabilities"),
+        (policies, "dimensions.policies"),
+        (sizes, "dimensions.sizes"),
+    ):
+        require_identifiers(values, path)
+
+    require(not (FORBIDDEN_LANGUAGES & set(languages)), "Rust, Go, and Java language variants are intentionally unsupported")
+    require({"shell", "php", "python", "node", "typescript", "c", "cpp"}.issubset(languages), "required language catalog is incomplete")
+    require({"cpu", "browser", "database", "android", "gpu"}.issubset(capabilities), "required capability catalog is incomplete")
+    require(len(policies) >= 5, "at least five policy classes are required")
+    require(len(sizes) >= 5, "at least five size classes are required")
+
+    for name, language in languages.items():
+        language = require_mapping(language, f"dimensions.languages.{name}")
+        require(language.get("status") in VALID_STATUS, f"invalid language status: {name}")
+        dependencies = language.get("requires")
+        refs = language.get("components")
+        require(isinstance(dependencies, list), f"language {name}.requires must be a list")
+        require(isinstance(refs, list), f"language {name}.components must be a list")
+        require(all(dep in languages for dep in dependencies), f"language {name} references an unknown dependency")
+        require(all(ref in components for ref in refs), f"language {name} references an unknown component")
+
+    for name, capability in capabilities.items():
+        capability = require_mapping(capability, f"dimensions.capabilities.{name}")
+        require(capability.get("status") in VALID_STATUS, f"invalid capability status: {name}")
+        refs = capability.get("components")
+        require(isinstance(refs, list) and all(ref in components for ref in refs), f"capability {name} has invalid components")
+
+    for name, policy in policies.items():
+        policy = require_mapping(policy, f"dimensions.policies.{name}")
+        require(policy.get("status") in VALID_STATUS, f"invalid policy status: {name}")
+        require(policy.get("ingress") in {"allow", "reject"}, f"invalid ingress policy: {name}")
+        require(policy.get("egress") in {"allow", "reject"}, f"invalid egress policy: {name}")
+
+    for name, size in sizes.items():
+        size = require_mapping(size, f"dimensions.sizes.{name}")
+        require(isinstance(size.get("cpus"), int) and size["cpus"] > 0, f"invalid CPU count: {name}")
+        for field in ("memory", "disk"):
+            require(isinstance(size.get(field), str) and re.fullmatch(r"[1-9]\d*GiB", size[field]) is not None, f"invalid {field}: {name}")
+
+    images = require_mapping(data.get("images"), "images")
+    require_identifiers(images, "images")
+    require(any(image.get("release") is True for image in images.values()), "at least one release image is required")
+    for name, image in images.items():
+        image = require_mapping(image, f"images.{name}")
+        require(image.get("status") in VALID_STATUS, f"invalid image status: {name}")
+        require(isinstance(image.get("release"), bool), f"image {name}.release must be boolean")
+        image_languages = image.get("languages")
+        image_capabilities = image.get("capabilities")
+        require(isinstance(image_languages, list) and all(ref in languages for ref in image_languages), f"image {name} has invalid languages")
+        require(isinstance(image_capabilities, list) and all(ref in capabilities for ref in image_capabilities), f"image {name} has invalid capabilities")
+        require(image.get("default_policy") in policies, f"image {name} has an invalid default policy")
+        require(image.get("default_size") in sizes, f"image {name} has an invalid default size")
+        if image["release"]:
+            require(image["status"] == "ready", f"release image {name} must be ready")
+            require(all(languages[ref]["status"] == "ready" for ref in image_languages), f"release image {name} uses an unready language")
+            require(all(capabilities[ref]["status"] == "ready" for ref in image_capabilities), f"release image {name} uses an unready capability")
+            for component in resolve_components(data, image):
+                require(components[component]["status"] == "ready", f"release image {name} uses unready component {component}")
+
+
+def resolve_language_order(languages: Mapping[str, Any], requested: Iterable[str]) -> list[str]:
+    result: list[str] = []
+    state: dict[str, int] = {}
+
+    def visit(name: str) -> None:
+        marker = state.get(name, 0)
+        require(marker != 1, f"language dependency cycle includes {name}")
+        if marker == 2:
+            return
+        state[name] = 1
+        for dependency in languages[name]["requires"]:
+            visit(dependency)
+        state[name] = 2
+        result.append(name)
+
+    for language in requested:
+        visit(language)
+    return result
+
+
+def resolve_components(data: Mapping[str, Any], image: Mapping[str, Any]) -> list[str]:
+    dimensions = data["dimensions"]
+    result: list[str] = []
+    seen: set[str] = set()
+
+    def append(items: Iterable[str]) -> None:
+        for item in items:
+            if item not in seen:
+                seen.add(item)
+                result.append(item)
+
+    for language in resolve_language_order(dimensions["languages"], image["languages"]):
+        append(dimensions["languages"][language]["components"])
+    for capability in image["capabilities"]:
+        append(dimensions["capabilities"][capability]["components"])
+    return result
+
+
+def shell_array(values: Iterable[str]) -> str:
+    return "(" + " ".join(shlex.quote(value) for value in values) + ")"
+
+
+def render_shell(data: Mapping[str, Any]) -> str:
+    platform = data["platform"]
+    images = data["images"]
+    release_images = [name for name, image in images.items() if image["release"]]
+    release_architectures = [name for name, architecture in platform["architectures"].items() if architecture["release"]]
+    lines = [
+        GENERATED_HEADER.rstrip(),
+        f"PLATFORM_NAME={shlex.quote(platform['name'])}",
+        f"PLATFORM_VERSION={shlex.quote(platform['version'])}",
+        f"INCUS_BASE_IMAGE={shlex.quote(platform['base_image'])}",
+        f"INCUS_IMAGE_PREFIX={shlex.quote(platform['image_prefix'])}",
+        f"PLATFORM_IMAGES={shell_array(images)}",
+        f"PLATFORM_RELEASE_IMAGES={shell_array(release_images)}",
+        f"PLATFORM_RELEASE_ARCHITECTURES={shell_array(release_architectures)}",
+        "",
+        "declare -Ag PLATFORM_ARCH_ALIASES=(",
+    ]
+    for canonical, architecture in platform["architectures"].items():
+        for alias in architecture["aliases"]:
+            lines.append(f"    [{shlex.quote(alias)}]={shlex.quote(canonical)}")
+    lines.extend([")", "", "declare -Ag PLATFORM_IMAGE_COMPONENTS=("])
+    for name, image in images.items():
+        lines.append(f"    [{name}]={shlex.quote(' '.join(resolve_components(data, image)))}")
+    lines.extend([")", "", "declare -Ag PLATFORM_IMAGE_DEFAULT_POLICY=("])
+    for name, image in images.items():
+        lines.append(f"    [{name}]={shlex.quote(image['default_policy'])}")
+    lines.extend([")", "", "declare -Ag PLATFORM_IMAGE_DEFAULT_SIZE=("])
+    for name, image in images.items():
+        lines.append(f"    [{name}]={shlex.quote(image['default_size'])}")
+    lines.extend([")", "", "declare -Ag PLATFORM_COMPONENT_PROVISION=("])
+    for name, component in data["components"].items():
+        if component["status"] == "ready":
+            lines.append(f"    [{name}]={shlex.quote(component['provision'] or '')}")
+    lines.extend([")", "", "declare -Ag PLATFORM_POLICY_STATUS=("])
+    for name, policy in data["dimensions"]["policies"].items():
+        lines.append(f"    [{name}]={shlex.quote(policy['status'])}")
+    lines.extend([")", "", "declare -Ag PLATFORM_SIZE_CPUS=("])
+    for name, size in data["dimensions"]["sizes"].items():
+        lines.append(f"    [{name}]={shlex.quote(str(size['cpus']))}")
+    lines.extend([")", ""])
+    return "\n".join(lines)
+
+
+def yaml_text(value: Mapping[str, Any]) -> str:
+    return GENERATED_HEADER + yaml.dump(
+        value,
+        Dumper=IndentedDumper,
+        sort_keys=False,
+        default_flow_style=False,
+    )
+
+
+def image_profile(name: str, image: Mapping[str, Any]) -> str:
+    return yaml_text(
+        {
+            "description": image["purpose"],
+            "config": {
+                "security.secureboot": "true",
+                "user.vdm.variant": name,
+            },
+            "devices": {},
+        }
+    )
+
+
+def size_profile(name: str, size: Mapping[str, Any]) -> str:
+    return yaml_text(
+        {
+            "description": f"VDM resource class: {name}",
+            "config": {
+                "limits.cpu": str(size["cpus"]),
+                "limits.memory": size["memory"],
+            },
+            "devices": {
+                "root": {
+                    "type": "disk",
+                    "path": "/",
+                    "pool": "default",
+                    "size": size["disk"],
+                }
+            },
+        }
+    )
+
+
+def policy_profile(name: str, policy: Mapping[str, Any]) -> str:
+    return yaml_text(
+        {
+            "description": f"VDM network policy: {name}",
+            "config": {
+                "user.vdm.policy": name,
+                "user.vdm.policy.status": policy["status"],
+            },
+            "devices": {
+                "eth0": {
+                    "type": "nic",
+                    "name": "eth0",
+                    "network": "vdm-agentbr0",
+                    "security.acls": f"vdm-agent-{name}",
+                    "security.acls.default.ingress.action": "reject",
+                    "security.acls.default.egress.action": "reject",
+                    "security.ipv4_filtering": "true",
+                }
+            },
+        }
+    )
+
+
+def acl_rules(name: str) -> list[dict[str, str]]:
+    gateway_rules = [
+        {"action": "allow", "description": "Runtime DNS", "destination": "10.248.18.1/32", "protocol": "udp", "destination_port": "53"},
+        {"action": "allow", "description": "Runtime DNS over TCP", "destination": "10.248.18.1/32", "protocol": "tcp", "destination_port": "53"},
+        {"action": "allow", "description": "Capability gateway", "destination": "10.248.18.1/32", "protocol": "tcp", "destination_port": "443"},
+    ]
+    if name == "offline":
+        return []
+    if name in {"brokered", "restricted", "release"}:
+        port = {"brokered": None, "restricted": "3128", "release": "3129"}[name]
+        rules = list(gateway_rules)
+        if port:
+            rules.append({"action": "allow", "description": f"{name.title()} HTTP CONNECT proxy", "destination": "10.248.18.1/32", "protocol": "tcp", "destination_port": port})
+        return rules
+    if name == "connected":
+        rules = list(gateway_rules)
+        for network in ("10.0.0.0/8", "100.64.0.0/10", "127.0.0.0/8", "169.254.0.0/16", "172.16.0.0/12", "192.168.0.0/16", "224.0.0.0/4"):
+            rules.append({"action": "reject", "description": "Deny private or special-use IPv4", "destination": network})
+        rules.append({"action": "allow", "description": "Public IPv4 Internet"})
+        return rules
+    if name == "lab":
+        return [{"action": "allow", "description": "Experimental lab egress"}]
+    raise ManifestError(f"no ACL renderer for policy {name}")
+
+
+def policy_acl(name: str) -> str:
+    return yaml_text(
+        {
+            "description": f"VDM generated egress policy: {name}",
+            "config": {},
+            "ingress": [],
+            "egress": acl_rules(name),
+        }
+    )
+
+
+def rendered_files(data: Mapping[str, Any]) -> dict[Path, str]:
+    files: dict[Path, str] = {
+        ROOT / "VERSION": f"{data['platform']['version']}\n",
+        ROOT / "manifest/generated/platform.env": render_shell(data),
+    }
+    for name, image in data["images"].items():
+        files[ROOT / f"incus/profiles/generated/images/{name}.yaml"] = image_profile(name, image)
+    for name, size in data["dimensions"]["sizes"].items():
+        files[ROOT / f"incus/profiles/generated/sizes/{name}.yaml"] = size_profile(name, size)
+    for name, policy in data["dimensions"]["policies"].items():
+        files[ROOT / f"incus/profiles/generated/policies/{name}.yaml"] = policy_profile(name, policy)
+        files[ROOT / f"incus/acls/generated/{name}.yaml"] = policy_acl(name)
+    return files
+
+
+def matrix(data: Mapping[str, Any]) -> dict[str, list[dict[str, str]]]:
+    include: list[dict[str, str]] = []
+    architectures = [
+        name
+        for name, architecture in data["platform"]["architectures"].items()
+        if architecture["release"]
+    ]
+    for architecture in architectures:
+        for variant, image in data["images"].items():
+            if image["release"]:
+                include.append(
+                    {
+                        "variant": variant,
+                        "architecture": architecture,
+                        "size": image["default_size"],
+                        "policy": image["default_policy"],
+                    }
+                )
+    return {"include": include}
+
+
+def write_files(files: Mapping[Path, str]) -> None:
+    for path, content in files.items():
+        path.parent.mkdir(parents=True, exist_ok=True)
+        path.write_text(content, encoding="utf-8")
+
+
+def check_files(files: Mapping[Path, str]) -> bool:
+    ok = True
+    expected = set(files)
+    generated_roots = (
+        ROOT / "manifest/generated",
+        ROOT / "incus/profiles/generated",
+        ROOT / "incus/acls/generated",
+    )
+    for path, wanted in files.items():
+        current = path.read_text(encoding="utf-8") if path.exists() else ""
+        if current != wanted:
+            ok = False
+            relative = path.relative_to(ROOT)
+            sys.stderr.writelines(
+                difflib.unified_diff(
+                    current.splitlines(keepends=True),
+                    wanted.splitlines(keepends=True),
+                    fromfile=f"{relative} (current)",
+                    tofile=f"{relative} (generated)",
+                )
+            )
+    for root in generated_roots:
+        if not root.exists():
+            continue
+        for path in root.rglob("*"):
+            if path.is_file() and path not in expected:
+                print(f"unexpected generated file: {path.relative_to(ROOT)}", file=sys.stderr)
+                ok = False
+    return ok
+
+
+def parse_args() -> argparse.Namespace:
+    parser = argparse.ArgumentParser()
+    action = parser.add_mutually_exclusive_group(required=True)
+    action.add_argument("--write", action="store_true")
+    action.add_argument("--check", action="store_true")
+    action.add_argument("--matrix", choices=("github", "gitea"))
+    return parser.parse_args()
+
+
+def main() -> int:
+    args = parse_args()
+    try:
+        data = load_manifest()
+        validate_manifest(data)
+        if args.matrix:
+            print(json.dumps(matrix(data), separators=(",", ":"), sort_keys=True))
+            return 0
+        files = rendered_files(data)
+        if args.write:
+            write_files(files)
+            return 0
+        return 0 if check_files(files) else 1
+    except (ManifestError, OSError, yaml.YAMLError) as error:
+        print(f"platform manifest error: {error}", file=sys.stderr)
+        return 2
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/scripts/generate-provenance.sh b/scripts/generate-provenance.sh
new file mode 100755
index 0000000..3bf2349
--- /dev/null
+++ b/scripts/generate-provenance.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+PACKAGE_DIR="${1:?package directory required}"
+
+subjects="$(
+    jq '[.payload[] | {name:.name,digest:{sha256:.sha256}}]' "$PACKAGE_DIR/manifest.json"
+)"
+jq -n \
+    --argjson subject "$subjects" \
+    --arg revision "$(jq -r '.source_revision' "$PACKAGE_DIR/manifest.json")" \
+    --arg started "$(jq -r '.packaged_at' "$PACKAGE_DIR/manifest.json")" \
+    --arg builder "${VDM_BUILDER_ID:-https://platform.vdm.dev/builders/incus/unregistered}" \
+    '{
+      _type:"https://in-toto.io/Statement/v1",
+      subject:$subject,
+      predicateType:"https://slsa.dev/provenance/v1",
+      predicate:{
+        buildDefinition:{
+          buildType:"https://platform.vdm.dev/build-types/incus-image/v1",
+          externalParameters:{},
+          internalParameters:{},
+          resolvedDependencies:[{
+            uri:"git+https://github.com/vast-development-method/opencode-platform",
+            digest:{gitCommit:$revision}
+          }]
+        },
+        runDetails:{
+          builder:{id:$builder},
+          metadata:{invocationId:env.GITHUB_RUN_ID,startedOn:$started,finishedOn:(now | todateiso8601)}
+        }
+      }
+    }' > "$PACKAGE_DIR/provenance.intoto.json"
diff --git a/scripts/generate-sbom.sh b/scripts/generate-sbom.sh
new file mode 100755
index 0000000..9046088
--- /dev/null
+++ b/scripts/generate-sbom.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+PACKAGE_DIR="${1:?package directory required}"
+command -v syft >/dev/null 2>&1 || { printf 'syft is required\n' >&2; exit 1; }
+syft "dir:$PACKAGE_DIR/payload" --output "spdx-json=$PACKAGE_DIR/sbom.spdx.json"
+jq -e '.spdxVersion and (.packages | type == "array")' "$PACKAGE_DIR/sbom.spdx.json" >/dev/null
diff --git a/scripts/import-image-package.sh b/scripts/import-image-package.sh
index 6614294..216e990 100755
--- a/scripts/import-image-package.sh
+++ b/scripts/import-image-package.sh
@@ -1,6 +1,5 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
-
 SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 # shellcheck disable=SC1091
 source "$SCRIPT_DIR/lib/common.sh"
@@ -8,27 +7,18 @@ source "$SCRIPT_DIR/lib/common.sh"
 PACKAGE_DIR="${1:-}"
 REQUESTED_ALIAS="${2:-}"
 [ -d "$PACKAGE_DIR" ] || die "Usage: $0 PACKAGE_DIRECTORY [IMAGE_ALIAS]"
-[ -f "$PACKAGE_DIR/manifest.json" ] || die "Package manifest is missing."
-[ -f "$PACKAGE_DIR/SHA256SUMS" ] || die "Package checksums are missing."
-
-(
-    cd "$PACKAGE_DIR"
-    sha256sum --check --strict SHA256SUMS
-)
+"$SCRIPT_DIR/verify-artifact.sh" "$PACKAGE_DIR"
 
-jq -e '
-    .schema == 1 and
-    (.platform | type == "string") and
-    (.version | type == "string") and
-    (.variant | type == "string") and
-    (.payload | type == "array" and length > 0)
-' "$PACKAGE_DIR/manifest.json" >/dev/null || die "Package manifest is invalid."
+package_architecture="$(jq -r '.architecture' "$PACKAGE_DIR/manifest.json")"
+host_architecture="$(canonical_architecture "$(uname -m)")"
+[ "$package_architecture" = "$host_architecture" ] ||
+    die "Package architecture $package_architecture does not match host $host_architecture"
 
 mapfile -t payload_names < <(jq -r '.payload[].name' "$PACKAGE_DIR/manifest.json")
 metadata_files=()
 data_files=()
 for name in "${payload_names[@]}"; do
-    [[ "$name" != */* && "$name" != .* ]] || die "Unsafe payload name: $name"
+    [[ "$name" == payload/* && "$name" != *..* ]] || die "Unsafe payload name: $name"
     [ -f "$PACKAGE_DIR/$name" ] || die "Package payload is missing: $name"
     if tar -tf "$PACKAGE_DIR/$name" 2>/dev/null | grep -Eq '^(\./)?metadata\.yaml$'; then
         metadata_files+=("$PACKAGE_DIR/$name")
@@ -43,13 +33,10 @@ alias_name="${REQUESTED_ALIAS:-$(jq -r '.image' "$PACKAGE_DIR/manifest.json")}"
 if [ -z "$alias_name" ] || [ "$alias_name" = null ]; then
     die "No image alias was supplied or recorded."
 fi
-if project_cmd image show "$alias_name" >/dev/null 2>&1; then
-    die "Image alias already exists: $alias_name"
-fi
-
+project_cmd image show "$alias_name" >/dev/null 2>&1 && die "Image alias already exists: $alias_name"
 project_cmd image import "${payload_files[@]}" --alias "$alias_name"
 project_cmd image set-property "$alias_name" org.vdm.platform "$(jq -r '.platform' "$PACKAGE_DIR/manifest.json")"
 project_cmd image set-property "$alias_name" org.vdm.version "$(jq -r '.version' "$PACKAGE_DIR/manifest.json")"
 project_cmd image set-property "$alias_name" org.vdm.variant "$(jq -r '.variant' "$PACKAGE_DIR/manifest.json")"
-
+project_cmd image set-property "$alias_name" org.vdm.architecture "$package_architecture"
 log "Imported $alias_name"
diff --git a/scripts/install-host-units.sh b/scripts/install-host-units.sh
new file mode 100755
index 0000000..05823e8
--- /dev/null
+++ b/scripts/install-host-units.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/lib/common.sh"
+
+escaped_root="$(printf '%s' "$ROOT_DIR" | sed 's/[&|]/\\&/g')"
+tmp="$(mktemp)"
+trap 'rm -f "$tmp"' EXIT
+sed "s|@ROOT_DIR@|$escaped_root|g" \
+    "$ROOT_DIR/host/systemd/vdm-opencode-reaper.service.in" > "$tmp"
+sudo install -o root -g root -m 0644 "$tmp" /etc/systemd/system/vdm-opencode-reaper.service
+sudo install -o root -g root -m 0644 \
+    "$ROOT_DIR/host/systemd/vdm-opencode-reaper.timer" \
+    /etc/systemd/system/vdm-opencode-reaper.timer
+sudo systemctl daemon-reload
+sudo systemctl enable --now vdm-opencode-reaper.timer
+log "Installed the agent VM expiry reaper"
diff --git a/scripts/launch-vm.sh b/scripts/launch-vm.sh
index eb187ff..2300a34 100755
--- a/scripts/launch-vm.sh
+++ b/scripts/launch-vm.sh
@@ -6,14 +6,39 @@ source "$SCRIPT_DIR/lib/common.sh"
 
 VARIANT="${1:-}"
 NAME="${2:-}"
-variant_exists "$VARIANT" || die "Variant must be one of: base php python cpp typescript full"
-[ -n "$NAME" ] || die "Usage: $0 VARIANT INSTANCE_NAME"
+POLICY="${3:-${PLATFORM_IMAGE_DEFAULT_POLICY[$VARIANT]:-}}"
+SIZE="${4:-${PLATFORM_IMAGE_DEFAULT_SIZE[$VARIANT]:-}}"
+variant_exists "$VARIANT" || die "Variant must be one of: ${PLATFORM_IMAGES[*]}"
+[ -n "$NAME" ] || die "Usage: $0 VARIANT INSTANCE_NAME [POLICY] [SIZE]"
+policy_exists "$POLICY" || die "Unknown policy: $POLICY"
+size_exists "$SIZE" || die "Unknown size: $SIZE"
+case "${PLATFORM_POLICY_STATUS[$POLICY]}" in
+    ready) ;;
+    experimental)
+        [ "${VDM_ALLOW_EXPERIMENTAL_POLICY:-false}" = true ] ||
+            die "Policy $POLICY is experimental; set VDM_ALLOW_EXPERIMENTAL_POLICY=true to acknowledge it."
+        ;;
+    *) die "Policy $POLICY is blocked until its gateway and enforcement dependencies are configured." ;;
+esac
 
 ALIAS="$(image_alias "$VARIANT")"
 project_cmd image show "$ALIAS" >/dev/null 2>&1 || die "Image not found: $ALIAS. Build or import it first."
 project_cmd info "$NAME" >/dev/null 2>&1 && die "Instance already exists: $NAME"
 
-project_cmd init "$ALIAS" "$NAME" --vm --profile "vdm-opencode-${VARIANT}"
+project_cmd init "$ALIAS" "$NAME" --vm \
+    --profile "vdm-opencode-${VARIANT}" \
+    --profile "vdm-size-$SIZE" \
+    --profile "vdm-policy-$POLICY"
+project_cmd config set "$NAME" user.vdm.owner "${VDM_SESSION_OWNER:-$USER}"
+project_cmd config set "$NAME" user.vdm.team "${VDM_SESSION_TEAM:-individual}"
+project_cmd config set "$NAME" user.vdm.policy "$POLICY"
+project_cmd config set "$NAME" user.vdm.size "$SIZE"
+project_cmd config set "$NAME" user.vdm.repository.trust "${VDM_REPOSITORY_TRUST:-trusted}"
+project_cmd config set "$NAME" user.vdm.repository.allowlist "${VDM_REPOSITORY_ALLOWLIST:-none}"
+project_cmd config set "$NAME" user.vdm.providers.allowlist "${VDM_PROVIDER_ALLOWLIST:-local-default}"
+project_cmd config set "$NAME" user.vdm.session.budget_usd "${VDM_SESSION_BUDGET_USD:-0}"
+project_cmd config set "$NAME" user.vdm.session.ttl "${VDM_SESSION_TTL:-$DEFAULT_SESSION_TTL}"
+project_cmd config set "$NAME" user.vdm.workspace.lifecycle "${VDM_WORKSPACE_LIFECYCLE:-disposable}"
 project_cmd start "$NAME"
 wait_for_vm "$NAME" || die "VM agent did not become ready: $NAME"
 project_cmd snapshot create "$NAME" factory
diff --git a/scripts/launch-wizard.sh b/scripts/launch-wizard.sh
new file mode 100755
index 0000000..96e8fef
--- /dev/null
+++ b/scripts/launch-wizard.sh
@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/lib/common.sh"
+
+prompt() {
+    local label="$1"
+    local default="${2:-}"
+    local value
+    if [ -n "$default" ]; then
+        read -r -p "$label [$default]: " value
+        printf '%s\n' "${value:-$default}"
+    else
+        read -r -p "$label: " value
+        [ -n "$value" ] || die "$label is required"
+        printf '%s\n' "$value"
+    fi
+}
+
+IMAGE="$(prompt "Image (${PLATFORM_IMAGES[*]})" base)"
+variant_exists "$IMAGE" || die "Unknown image: $IMAGE"
+INSTANCE="$(prompt "Instance name")"
+[[ "$INSTANCE" =~ ^[a-zA-Z0-9][a-zA-Z0-9.-]*$ ]] || die "Unsafe instance name"
+OWNER="$(prompt "Owner" "${USER:-unknown}")"
+TEAM="$(prompt "Team" individual)"
+TRUST="$(prompt "Repository trust (trusted/untrusted)" trusted)"
+case "$TRUST" in trusted|untrusted) ;; *) die "Trust must be trusted or untrusted" ;; esac
+
+default_policy="${PLATFORM_IMAGE_DEFAULT_POLICY[$IMAGE]}"
+[ "$TRUST" = untrusted ] && default_policy=offline
+POLICY="$(prompt "Network policy" "$default_policy")"
+policy_exists "$POLICY" || die "Unknown policy: $POLICY"
+SIZE="$(prompt "Resource size" "${PLATFORM_IMAGE_DEFAULT_SIZE[$IMAGE]}")"
+size_exists "$SIZE" || die "Unknown size: $SIZE"
+TTL="$(prompt "Maximum session TTL" "$DEFAULT_SESSION_TTL")"
+TTL_SECONDS="$(duration_to_seconds "$TTL")"
+((TTL_SECONDS >= 60 && TTL_SECONDS <= 86400)) || die "TTL must be between one minute and 24 hours"
+WORKSPACE="$(prompt "Workspace lifecycle (disposable/retained)" disposable)"
+case "$WORKSPACE" in disposable|retained) ;; *) die "Workspace lifecycle must be disposable or retained" ;; esac
+REPOSITORIES="$(prompt "Allowed repositories (comma-separated, metadata only)" none)"
+PROVIDERS="$(prompt "Allowed model routes (comma-separated)" local-default)"
+BUDGET="$(prompt "Session budget in USD (0 means externally enforced)" 0)"
+[[ "$BUDGET" =~ ^[0-9]+([.][0-9]{1,2})?$ ]] || die "Budget must be a non-negative number"
+
+export VDM_SESSION_OWNER="$OWNER"
+export VDM_SESSION_TEAM="$TEAM"
+export VDM_REPOSITORY_TRUST="$TRUST"
+export VDM_WORKSPACE_LIFECYCLE="$WORKSPACE"
+export VDM_REPOSITORY_ALLOWLIST="$REPOSITORIES"
+export VDM_PROVIDER_ALLOWLIST="$PROVIDERS"
+export VDM_SESSION_BUDGET_USD="$BUDGET"
+export VDM_SESSION_TTL="$TTL"
+
+"$SCRIPT_DIR/launch-vm.sh" "$IMAGE" "$INSTANCE" "$POLICY" "$SIZE"
+
+printf '\nCreated %s with policy=%s, size=%s, trust=%s, TTL=%s.\n' \
+    "$INSTANCE" "$POLICY" "$SIZE" "$TRUST" "$TTL"
+printf 'Create its runtime credentials with: %s/create-runtime-env.sh %s\n' "$SCRIPT_DIR" "$INSTANCE"
+printf 'Start it with: %s/start-session.sh %s <runtime-env> %s\n' "$SCRIPT_DIR" "$INSTANCE" "$TTL"
diff --git a/scripts/lib/common.sh b/scripts/lib/common.sh
index f59fbcd..8fc0ecd 100755
--- a/scripts/lib/common.sh
+++ b/scripts/lib/common.sh
@@ -3,6 +3,8 @@ set -Eeuo pipefail
 
 ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/../.." && pwd)"
 # shellcheck disable=SC1091
+source "$ROOT_DIR/manifest/generated/platform.env"
+# shellcheck disable=SC1091
 source "$ROOT_DIR/manifest/platform.env"
 # shellcheck disable=SC1091
 source "$ROOT_DIR/manifest/toolchain.env"
@@ -31,6 +33,23 @@ require_command() {
     command -v "$1" >/dev/null 2>&1 || die "Required command not found: $1"
 }
 
+duration_to_seconds() {
+    local value="${1:?duration required}"
+    local amount
+    local suffix
+
+    [[ "$value" =~ ^([1-9][0-9]*)(s|m|h|d)?$ ]] ||
+        die "Invalid duration: $value (use seconds or a suffix: s, m, h, d)"
+    amount="${BASH_REMATCH[1]}"
+    suffix="${BASH_REMATCH[2]:-s}"
+    case "$suffix" in
+        s) printf '%s\n' "$amount" ;;
+        m) printf '%s\n' "$((amount * 60))" ;;
+        h) printf '%s\n' "$((amount * 3600))" ;;
+        d) printf '%s\n' "$((amount * 86400))" ;;
+    esac
+}
+
 incus_cmd() {
     if incus info >/dev/null 2>&1; then
         incus "$@"
@@ -56,12 +75,42 @@ wait_for_vm() {
 }
 
 variant_exists() {
-    case "$1" in
-        base|php|python|cpp|typescript|full) return 0 ;;
-        *) return 1 ;;
-    esac
+    [[ -n "${1:-}" && -v "PLATFORM_IMAGE_COMPONENTS[$1]" ]]
+}
+
+policy_exists() {
+    [[ -n "${1:-}" && -v "PLATFORM_POLICY_STATUS[$1]" ]]
+}
+
+size_exists() {
+    [[ -n "${1:-}" && -v "PLATFORM_SIZE_CPUS[$1]" ]]
+}
+
+image_has_component() {
+    local image="${1:?image required}"
+    local wanted="${2:?component required}"
+    local component
+
+    for component in ${PLATFORM_IMAGE_COMPONENTS[$image]}; do
+        [[ "$component" == "$wanted" ]] && return 0
+    done
+    return 1
+}
+
+canonical_architecture() {
+    local raw="${1:-$(uname -m)}"
+    [[ -v "PLATFORM_ARCH_ALIASES[$raw]" ]] || die "Unsupported architecture: $raw"
+    printf '%s\n' "${PLATFORM_ARCH_ALIASES[$raw]}"
 }
 
 image_alias() {
-    printf '%s-%s/%s' "$INCUS_IMAGE_PREFIX" "$1" "$PLATFORM_VERSION"
+    local variant="${1:?variant required}"
+    local architecture="${2:-$(canonical_architecture "$(uname -m)")}"
+    printf '%s-%s/%s-%s' "$INCUS_IMAGE_PREFIX" "$variant" "$PLATFORM_VERSION" "$architecture"
+}
+
+artifact_id() {
+    local variant="${1:?variant required}"
+    local architecture="${2:-$(canonical_architecture "$(uname -m)")}"
+    printf '%s-%s-%s-%s' "$INCUS_IMAGE_PREFIX" "$variant" "$PLATFORM_VERSION" "$architecture"
 }
diff --git a/scripts/lib/variant-selection.sh b/scripts/lib/variant-selection.sh
old mode 100644
new mode 100755
index d440171..9560f89
--- a/scripts/lib/variant-selection.sh
+++ b/scripts/lib/variant-selection.sh
@@ -1,7 +1,11 @@
 #!/usr/bin/env bash
 set -Eeuo pipefail
 
-LOCAL_RELEASE_ALL_VARIANTS=(base php python cpp typescript full)
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/common.sh"
+
+LOCAL_RELEASE_ALL_VARIANTS=("${PLATFORM_RELEASE_IMAGES[@]}")
 
 parse_variant_selection() {
     local raw_selection="${1-}"
@@ -36,13 +40,10 @@ parse_variant_selection() {
             return 0
         fi
 
-        case "$variant" in
-            base|php|python|cpp|typescript|full) ;;
-            *)
-                printf 'Unknown variant: %s\n' "$variant" >&2
-                return 2
-                ;;
-        esac
+        if ! variant_exists "$variant"; then
+            printf 'Unknown variant: %s\n' "$variant" >&2
+            return 2
+        fi
 
         if [[ -z "${seen[$variant]:-}" ]]; then
             output+=("$variant")
diff --git a/scripts/list-vms.sh b/scripts/list-vms.sh
new file mode 100755
index 0000000..6f60e52
--- /dev/null
+++ b/scripts/list-vms.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/lib/common.sh"
+
+project_cmd list --format json | jq -r '
+  ["NAME","STATE","OWNER","TEAM","IMAGE","POLICY","SIZE","TRUST","EXPIRES"],
+  (.[] | [
+    .name,
+    .status,
+    (.config["user.vdm.owner"] // "-"),
+    (.config["user.vdm.team"] // "-"),
+    (.config["user.vdm.variant"] // "-"),
+    (.config["user.vdm.policy"] // "-"),
+    (.config["user.vdm.size"] // "-"),
+    (.config["user.vdm.repository.trust"] // "-"),
+    (.config["user.vdm.session.expires_epoch"] // "-")
+  ]) | @tsv' | column -t -s $'\t'
diff --git a/scripts/local-image-release.sh b/scripts/local-image-release.sh
index f75d0eb..6990037 100755
--- a/scripts/local-image-release.sh
+++ b/scripts/local-image-release.sh
@@ -58,6 +58,7 @@ fi
 
 "$ROOT_DIR/tests/validate-repository.sh"
 "$SCRIPT_DIR/ci/check-incus-runner.sh"
+architecture="$(canonical_architecture "$(uname -m)")"
 
 install -d -m 0750 "$ROOT_DIR/build"
 exec 9>"$ROOT_DIR/build/.local-release.lock"
@@ -70,7 +71,7 @@ for variant in "${variants[@]}"; do
     log "Building $variant"
     "$SCRIPT_DIR/build-image.sh" "$variant"
 
-    package_dir="$ROOT_DIR/build/packages/$PLATFORM_VERSION/$variant"
+    package_dir="$ROOT_DIR/build/packages/$PLATFORM_VERSION/$architecture/$variant"
     "$SCRIPT_DIR/package-image.sh" "$variant" "$package_dir"
     (
         cd "$package_dir"
diff --git a/scripts/occtl.sh b/scripts/occtl.sh
index c17c665..356ebbf 100755
--- a/scripts/occtl.sh
+++ b/scripts/occtl.sh
@@ -11,6 +11,8 @@ case "$command" in
     build) exec "$SCRIPT_DIR/build-image.sh" "$@" ;;
     build-all) exec "$SCRIPT_DIR/build-all-images.sh" "$@" ;;
     launch) exec "$SCRIPT_DIR/launch-vm.sh" "$@" ;;
+    launch-wizard) exec "$SCRIPT_DIR/launch-wizard.sh" "$@" ;;
+    list) exec "$SCRIPT_DIR/list-vms.sh" "$@" ;;
     session) exec "$SCRIPT_DIR/start-session.sh" "$@" ;;
     stop-session) exec "$SCRIPT_DIR/stop-session.sh" "$@" ;;
     runtime-env) exec "$SCRIPT_DIR/create-runtime-env.sh" "$@" ;;
@@ -30,6 +32,8 @@ occtl commands:
   build VARIANT
   build-all
   launch VARIANT INSTANCE
+  launch-wizard
+  list
   runtime-env INSTANCE
   session INSTANCE [RUNTIME_ENV_FILE]
   stop-session INSTANCE
diff --git a/scripts/package-image.sh b/scripts/package-image.sh
index dcada41..fcf4d4b 100755
--- a/scripts/package-image.sh
+++ b/scripts/package-image.sh
@@ -5,60 +5,112 @@ SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 source "$SCRIPT_DIR/lib/common.sh"
 
 VARIANT="${1:-}"
-OUTPUT_DIR="${2:-$ROOT_DIR/build/packages/${PLATFORM_VERSION}/${VARIANT}}"
+ARCHITECTURE="$(canonical_architecture "${VDM_BUILD_ARCHITECTURE:-}")"
+OUTPUT_DIR="${2:-$ROOT_DIR/build/packages/${PLATFORM_VERSION}/${ARCHITECTURE}/${VARIANT}}"
 variant_exists "$VARIANT" || die "Unknown variant: $VARIANT"
-ALIAS="$(image_alias "$VARIANT")"
+ALIAS="$(image_alias "$VARIANT" "$ARCHITECTURE")"
+ARTIFACT_ID="$(artifact_id "$VARIANT" "$ARCHITECTURE")"
 
 install -d -m 0750 "$OUTPUT_DIR"
 find "$OUTPUT_DIR" -mindepth 1 -maxdepth 1 -exec rm -rf -- {} +
-project_cmd image export "$ALIAS" "$OUTPUT_DIR/${INCUS_IMAGE_PREFIX}-${VARIANT}-${PLATFORM_VERSION}"
+install -d -m 0750 "$OUTPUT_DIR/payload" "$OUTPUT_DIR/evidence"
+project_cmd image export "$ALIAS" "$OUTPUT_DIR/payload/$ARTIFACT_ID"
 
 source_revision="unknown"
+source_tag=""
 if command -v git >/dev/null 2>&1 && git -C "$ROOT_DIR" rev-parse --verify HEAD >/dev/null 2>&1; then
     source_revision="$(git -C "$ROOT_DIR" rev-parse HEAD)"
+    source_tag="$(git -C "$ROOT_DIR" describe --tags --exact-match HEAD 2>/dev/null || true)"
 fi
 
 payload_json="$(
-    find "$OUTPUT_DIR" -maxdepth 1 -type f -printf '%f\n' | LC_ALL=C sort | while IFS= read -r name; do
+    find "$OUTPUT_DIR/payload" -maxdepth 1 -type f -printf '%f\n' | LC_ALL=C sort | while IFS= read -r name; do
         jq -n \
-            --arg name "$name" \
-            --arg sha256 "$(sha256sum "$OUTPUT_DIR/$name" | awk '{print $1}')" \
-            --argjson bytes "$(stat -c '%s' "$OUTPUT_DIR/$name")" \
+            --arg name "payload/$name" \
+            --arg sha256 "$(sha256sum "$OUTPUT_DIR/payload/$name" | awk '{print $1}')" \
+            --argjson bytes "$(stat -c '%s' "$OUTPUT_DIR/payload/$name")" \
             '{name:$name,sha256:$sha256,bytes:$bytes}'
     done | jq -s .
 )"
 
 jq -n \
-  --argjson schema 1 \
-  --arg platform "$PLATFORM_NAME" \
-  --arg version "$PLATFORM_VERSION" \
-  --arg variant "$VARIANT" \
-  --arg image "$ALIAS" \
-  --arg architecture "$(uname -m)" \
-  --arg source_revision "$source_revision" \
-  --arg built_at "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
-  --argjson payload "$payload_json" \
-  '{
-    schema:$schema,
-    platform:$platform,
-    version:$version,
-    variant:$variant,
-    image:$image,
-    architecture:$architecture,
-    source_revision:$source_revision,
-    packaged_at:$built_at,
-    payload:$payload
-  }' \
-  > "$OUTPUT_DIR/manifest.json"
+    --argjson schema 2 \
+    --arg artifact_id "$ARTIFACT_ID" \
+    --arg platform "$PLATFORM_NAME" \
+    --arg version "$PLATFORM_VERSION" \
+    --arg variant "$VARIANT" \
+    --arg image "$ALIAS" \
+    --arg architecture "$ARCHITECTURE" \
+    --arg incus_architecture "$(uname -m)" \
+    --arg source_revision "$source_revision" \
+    --arg source_tag "$source_tag" \
+    --arg packaged_at "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+    --argjson payload "$payload_json" \
+    '{
+      schema:$schema,
+      artifact_id:$artifact_id,
+      platform:$platform,
+      version:$version,
+      variant:$variant,
+      image:$image,
+      architecture:$architecture,
+      incus_architecture:$incus_architecture,
+      source_revision:$source_revision,
+      source_tag:$source_tag,
+      packaged_at:$packaged_at,
+      payload:$payload,
+      supply_chain:{sbom:"not-generated",vulnerability_scan:"not-generated",signature:"not-generated"}
+    }' > "$OUTPUT_DIR/manifest.json"
+
+if command -v syft >/dev/null 2>&1; then
+    "$SCRIPT_DIR/generate-sbom.sh" "$OUTPUT_DIR"
+    tmp="$(mktemp)"
+    jq '.supply_chain.sbom = "sbom.spdx.json"' "$OUTPUT_DIR/manifest.json" > "$tmp"
+    install -m 0640 "$tmp" "$OUTPUT_DIR/manifest.json"
+    rm -f "$tmp"
+elif [ "${VDM_RELEASE_MODE:-false}" = true ]; then
+    die "syft is required in release mode"
+fi
+
+if [ -f "$OUTPUT_DIR/sbom.spdx.json" ] && command -v grype >/dev/null 2>&1; then
+    "$SCRIPT_DIR/scan-sbom.sh" "$OUTPUT_DIR"
+    tmp="$(mktemp)"
+    jq '.supply_chain.vulnerability_scan = "vulnerabilities.grype.json"' "$OUTPUT_DIR/manifest.json" > "$tmp"
+    install -m 0640 "$tmp" "$OUTPUT_DIR/manifest.json"
+    rm -f "$tmp"
+elif [ "${VDM_RELEASE_MODE:-false}" = true ]; then
+    die "grype and a generated SBOM are required in release mode"
+fi
+
+"$SCRIPT_DIR/generate-provenance.sh" "$OUTPUT_DIR"
+
+if [ -n "${COSIGN_KEY:-}" ]; then
+    tmp="$(mktemp)"
+    jq '.supply_chain.signature = "SHA256SUMS.sigstore.json"' "$OUTPUT_DIR/manifest.json" > "$tmp"
+    install -m 0640 "$tmp" "$OUTPUT_DIR/manifest.json"
+    rm -f "$tmp"
+fi
 
 checksums_file="$(mktemp)"
 trap 'rm -f "$checksums_file"' EXIT
 (
     cd "$OUTPUT_DIR"
-    find . -maxdepth 1 -type f ! -name SHA256SUMS -printf '%P\0' \
-        | LC_ALL=C sort -z \
-        | xargs -0 sha256sum > "$checksums_file"
+    find . -type f \
+        ! -name SHA256SUMS \
+        ! -name SHA256SUMS.sigstore.json \
+        -printf '%P\0' |
+        LC_ALL=C sort -z |
+        xargs -0 sha256sum > "$checksums_file"
 )
 install -m 0640 "$checksums_file" "$OUTPUT_DIR/SHA256SUMS"
+rm -f "$checksums_file"
+trap - EXIT
+
+if [ -n "${COSIGN_KEY:-}" ]; then
+    "$SCRIPT_DIR/sign-artifact.sh" "$OUTPUT_DIR"
+elif [ "${VDM_RELEASE_MODE:-false}" = true ]; then
+    die "COSIGN_KEY (normally openbao://vdm-opencode-release) is required in release mode"
+fi
 
-log "Packaged image in $OUTPUT_DIR"
+"$SCRIPT_DIR/verify-artifact.sh" "$OUTPUT_DIR"
+log "Packaged $ARTIFACT_ID in $OUTPUT_DIR"
diff --git a/scripts/publish-gitea-package.sh b/scripts/publish-gitea-package.sh
index 0294fe6..67f36f1 100755
--- a/scripts/publish-gitea-package.sh
+++ b/scripts/publish-gitea-package.sh
@@ -5,25 +5,96 @@ SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 source "$SCRIPT_DIR/lib/common.sh"
 
 VARIANT="${1:-}"
-PACKAGE_DIR="${2:-$ROOT_DIR/build/packages/${PLATFORM_VERSION}/${VARIANT}}"
+ARCHITECTURE="$(canonical_architecture "${VDM_BUILD_ARCHITECTURE:-}")"
+PACKAGE_DIR="${2:-$ROOT_DIR/build/packages/${PLATFORM_VERSION}/${ARCHITECTURE}/${VARIANT}}"
 variant_exists "$VARIANT" || die "Unknown variant: $VARIANT"
 [ -d "$PACKAGE_DIR" ] || die "Package directory missing: $PACKAGE_DIR"
+"$SCRIPT_DIR/verify-artifact.sh" "$PACKAGE_DIR"
 
 : "${GITEA_PACKAGE_OWNER:?Set GITEA_PACKAGE_OWNER}"
 : "${GITEA_PACKAGE_TOKEN:?Set GITEA_PACKAGE_TOKEN in the CI runtime only}"
 GITEA_PACKAGE_USER="${GITEA_PACKAGE_USER:-package-publisher}"
-PACKAGE_NAME="${GITEA_PACKAGE_NAME:-vdm-opencode-${VARIANT}}"
+[[ "$GITEA_PACKAGE_USER" =~ ^[A-Za-z0-9_.@+-]+$ ]] || die "Unsafe Gitea package user"
+[[ "$GITEA_PACKAGE_TOKEN" != *$'\n'* && "$GITEA_PACKAGE_TOKEN" != *'"'* ]] || die "Unsafe Gitea token encoding"
 
-for file in "$PACKAGE_DIR"/*; do
-    [ -f "$file" ] || continue
+PACKAGE_NAME="${GITEA_PACKAGE_NAME:-vdm-opencode-${VARIANT}-${ARCHITECTURE}}"
+ARTIFACT_ID="$(artifact_id "$VARIANT" "$ARCHITECTURE")"
+STAGING="$(mktemp -d)"
+trap 'rm -rf "$STAGING"' EXIT
+BUNDLE="$STAGING/${ARTIFACT_ID}.tar.zst"
+
+tar --sort=name --mtime='UTC 1970-01-01' --owner=0 --group=0 --numeric-owner \
+    -C "$PACKAGE_DIR" -cf - . | zstd --quiet --threads=0 -19 -o "$BUNDLE"
+BUNDLE_SHA="$(sha256sum "$BUNDLE" | awk '{print $1}')"
+BUNDLE_SIZE="$(stat -c '%s' "$BUNDLE")"
+
+jq -n \
+    --arg schema "1" \
+    --arg artifact_id "$ARTIFACT_ID" \
+    --arg version "$PLATFORM_VERSION" \
+    --arg variant "$VARIANT" \
+    --arg architecture "$ARCHITECTURE" \
+    --arg bundle "$(basename "$BUNDLE")" \
+    --arg sha256 "$BUNDLE_SHA" \
+    --argjson bytes "$BUNDLE_SIZE" \
+    --arg published_at "$(date -u +%Y-%m-%dT%H:%M:%SZ)" \
+    '{schema:($schema|tonumber),artifact_id:$artifact_id,version:$version,variant:$variant,
+      architecture:$architecture,bundle:$bundle,sha256:$sha256,bytes:$bytes,published_at:$published_at}' \
+    > "$STAGING/release-entry.json"
+
+if [ -n "${COSIGN_KEY:-}" ]; then
+    cosign sign-blob --yes --tlog-upload=false --key "$COSIGN_KEY" \
+        --bundle "$STAGING/release-entry.sigstore.json" "$STAGING/release-entry.json"
+elif [ "${VDM_RELEASE_MODE:-false}" = true ]; then
+    die "COSIGN_KEY is required for tagged release publication"
+fi
+
+MARKER="$STAGING/${ARTIFACT_ID}.complete.tar"
+marker_files=(release-entry.json)
+if [ -f "$STAGING/release-entry.sigstore.json" ]; then
+    marker_files+=(release-entry.sigstore.json)
+fi
+tar --sort=name --mtime='UTC 1970-01-01' --owner=0 --group=0 --numeric-owner \
+    -C "$STAGING" -cf "$MARKER" "${marker_files[@]}"
+
+gitea_curl() {
+    local method="${1:?method required}"
+    local url="${2:?url required}"
+    shift 2
+    printf 'user = "%s:%s"\n' "$GITEA_PACKAGE_USER" "$GITEA_PACKAGE_TOKEN" |
+        curl --config - --request "$method" --silent --show-error \
+            --retry 4 --retry-all-errors --connect-timeout 15 "$@" "$url"
+}
+
+publish_immutable() {
+    local file="${1:?file required}"
+    local name
+    local url
+    local status
+    local remote
+    local local_sha
+    local remote_sha
     name="$(basename "$file")"
-    curl --fail-with-body --silent --show-error \
-        --retry 4 \
-        --retry-all-errors \
-        --connect-timeout 15 \
-        --user "${GITEA_PACKAGE_USER}:${GITEA_PACKAGE_TOKEN}" \
-        --upload-file "$file" \
-        "${GITEA_BASE_URL}/api/packages/${GITEA_PACKAGE_OWNER}/generic/${PACKAGE_NAME}/${PLATFORM_VERSION}/${name}"
-done
-
-log "Published ${PACKAGE_NAME}/${PLATFORM_VERSION}"
+    url="${GITEA_BASE_URL}/api/packages/${GITEA_PACKAGE_OWNER}/generic/${PACKAGE_NAME}/${PLATFORM_VERSION}/${name}"
+    status="$(gitea_curl HEAD "$url" --output /dev/null --write-out '%{http_code}')"
+    case "$status" in
+        404)
+            gitea_curl PUT "$url" --upload-file "$file" --fail-with-body >/dev/null
+            ;;
+        200) ;;
+        *) die "Unexpected Gitea response for $name: HTTP $status" ;;
+    esac
+    remote="$(mktemp)"
+    gitea_curl GET "$url" --fail-with-body --output "$remote"
+    local_sha="$(sha256sum "$file" | awk '{print $1}')"
+    remote_sha="$(sha256sum "$remote" | awk '{print $1}')"
+    rm -f "$remote"
+    [ "$local_sha" = "$remote_sha" ] ||
+        die "Published object differs from local object: $name"
+}
+
+# The completion marker is deliberately uploaded last. Consumers must ignore
+# an artifact unless this immutable marker exists and verifies.
+publish_immutable "$BUNDLE"
+publish_immutable "$MARKER"
+log "Published atomic package marker for ${PACKAGE_NAME}/${PLATFORM_VERSION}"
diff --git a/scripts/reap-expired-vms.sh b/scripts/reap-expired-vms.sh
new file mode 100755
index 0000000..a204b5d
--- /dev/null
+++ b/scripts/reap-expired-vms.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck disable=SC1091
+source "$SCRIPT_DIR/lib/common.sh"
+
+NOW="${VDM_REAPER_NOW:-$(date +%s)}"
+[[ "$NOW" =~ ^[0-9]+$ ]] || die "VDM_REAPER_NOW must be an epoch integer"
+
+mapfile -t rows < <(
+    project_cmd list --format json |
+        jq -r '.[] | select(.status == "Running") |
+            [.name, (.config["user.vdm.session.expires_epoch"] // "")] | @tsv'
+)
+
+for row in "${rows[@]}"; do
+    IFS=$'\t' read -r name expires <<< "$row"
+    [ -n "$expires" ] || continue
+    if [[ ! "$expires" =~ ^[0-9]+$ ]]; then
+        warn "Ignoring malformed expiry metadata on $name: $expires"
+        continue
+    fi
+    if ((expires <= NOW)); then
+        log "Stopping expired agent VM $name"
+        # The single-quoted command is intentionally evaluated inside the guest.
+        # shellcheck disable=SC2016
+        project_cmd exec "$name" -- bash -c \
+            'systemctl list-units --type=service --all --no-legend "vdm-opencode-*.service" |
+             awk "{print \$1}" | xargs -r systemctl stop' >/dev/null 2>&1 || true
+        project_cmd stop "$name" --timeout 30 >/dev/null 2>&1 || project_cmd stop "$name" --force
+        project_cmd config unset "$name" user.vdm.session.id >/dev/null 2>&1 || true
+        project_cmd config unset "$name" user.vdm.session.expires_epoch >/dev/null 2>&1 || true
+    fi
+done
diff --git a/scripts/scan-sbom.sh b/scripts/scan-sbom.sh
new file mode 100755
index 0000000..918638b
--- /dev/null
+++ b/scripts/scan-sbom.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+PACKAGE_DIR="${1:?package directory required}"
+command -v grype >/dev/null 2>&1 || { printf 'grype is required\n' >&2; exit 1; }
+grype "sbom:$PACKAGE_DIR/sbom.spdx.json" --output json > "$PACKAGE_DIR/vulnerabilities.grype.json"
+jq -e '.matches | type == "array"' "$PACKAGE_DIR/vulnerabilities.grype.json" >/dev/null
+
+critical="$(jq '[.matches[] | select(.vulnerability.severity == "Critical")] | length' "$PACKAGE_DIR/vulnerabilities.grype.json")"
+high_fixed="$(jq '[.matches[] | select(.vulnerability.severity == "High" and ((.vulnerability.fix.versions // []) | length > 0))] | length' "$PACKAGE_DIR/vulnerabilities.grype.json")"
+jq -n \
+    --argjson critical "$critical" \
+    --argjson high_with_fix "$high_fixed" \
+    --arg result "$([ "$critical" -eq 0 ] && [ "$high_fixed" -eq 0 ] && printf pass || printf fail)" \
+    '{policy:"security/vulnerability-policy.yaml",critical:$critical,high_with_fix:$high_with_fix,result:$result}' \
+    > "$PACKAGE_DIR/evidence/vulnerability-policy-result.json"
+if [ "$critical" -ne 0 ] || [ "$high_fixed" -ne 0 ]; then
+    printf 'Vulnerability policy failed: critical=%s high-with-fix=%s\n' "$critical" "$high_fixed" >&2
+    exit 1
+fi
diff --git a/scripts/sign-artifact.sh b/scripts/sign-artifact.sh
new file mode 100755
index 0000000..8f9a7c3
--- /dev/null
+++ b/scripts/sign-artifact.sh
@@ -0,0 +1,11 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+PACKAGE_DIR="${1:?package directory required}"
+: "${COSIGN_KEY:?Set COSIGN_KEY, preferably to openbao://vdm-opencode-release}"
+command -v cosign >/dev/null 2>&1 || { printf 'cosign is required\n' >&2; exit 1; }
+cosign sign-blob \
+    --yes \
+    --tlog-upload=false \
+    --key "$COSIGN_KEY" \
+    --bundle "$PACKAGE_DIR/SHA256SUMS.sigstore.json" \
+    "$PACKAGE_DIR/SHA256SUMS"
diff --git a/scripts/start-session.sh b/scripts/start-session.sh
index 7fb8645..d388114 100755
--- a/scripts/start-session.sh
+++ b/scripts/start-session.sh
@@ -5,48 +5,115 @@ SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
 source "$SCRIPT_DIR/lib/common.sh"
 
 NAME="${1:-}"
-[ -n "$NAME" ] || die "Usage: $0 INSTANCE_NAME [HOST_RUNTIME_ENV_FILE]"
+[ -n "$NAME" ] || die "Usage: $0 INSTANCE_NAME [HOST_RUNTIME_ENV_FILE] [TTL]"
 HOST_ENV_FILE="${2:-/run/user/${UID}/vdm-opencode/${NAME}.env}"
+TTL="${3:-$DEFAULT_SESSION_TTL}"
+TTL_SECONDS="$(duration_to_seconds "$TTL")"
+((TTL_SECONDS >= 60 && TTL_SECONDS <= 86400)) ||
+    die "Session TTL must be between 60 seconds and 24 hours."
 
 project_cmd info "$NAME" >/dev/null 2>&1 || die "Unknown instance: $NAME"
 project_cmd start "$NAME" >/dev/null 2>&1 || true
 wait_for_vm "$NAME" || die "VM agent did not become ready: $NAME"
 
-declare -a EXEC_ENV
-if [ -f "$HOST_ENV_FILE" ]; then
-    [ "$(stat -c '%a' "$HOST_ENV_FILE")" = 600 ] || die "Runtime env file must have mode 0600: $HOST_ENV_FILE"
+allowed_key() {
+    case "$1" in
+        VDM_LLM_GATEWAY_URL|VDM_LLM_GATEWAY_TOKEN|\
+        GITHUB_MCP_URL|GITHUB_MCP_TOKEN|\
+        GITEA_MCP_URL|GITEA_MCP_TOKEN|\
+        NEXTCLOUD_MCP_URL|NEXTCLOUD_MCP_TOKEN|\
+        JOOMLA_MCP_URL|JOOMLA_MCP_TOKEN|\
+        JCB_MCP_URL|JCB_MCP_TOKEN|\
+        STT_MCP_URL|STT_MCP_TOKEN|\
+        VDM_LOCAL_LLM_BASE_URL|VDM_LOCAL_LLM_MODEL) return 0 ;;
+        *) return 1 ;;
+    esac
+}
+
+validate_runtime_file() {
+    local file="$1"
+    local line
+    local key
+    if [ ! -f "$file" ] || [ -L "$file" ]; then
+        die "Runtime env must be a regular non-symlink file: $file"
+    fi
+    [ "$(stat -c '%u' "$file")" = "$UID" ] || die "Runtime env file must be owned by UID $UID: $file"
+    [ "$(stat -c '%a' "$file")" = 600 ] || die "Runtime env file must have mode 0600: $file"
+    [ "$(stat -c '%h' "$file")" = 1 ] || die "Runtime env file must have exactly one hard link: $file"
     while IFS= read -r line || [ -n "$line" ]; do
         case "$line" in
             ""|\#*) continue ;;
-            *=*) EXEC_ENV+=(--env "$line") ;;
-            *) die "Invalid runtime environment line in $HOST_ENV_FILE" ;;
+            *=*)
+                key="${line%%=*}"
+                [[ "$key" =~ ^[A-Z][A-Z0-9_]*$ ]] || die "Invalid runtime variable name: $key"
+                allowed_key "$key" || die "Runtime variable is not allowed: $key"
+                ;;
+            *) die "Invalid runtime environment line in $file" ;;
         esac
-    done < "$HOST_ENV_FILE"
+    done < "$file"
+}
+
+empty_env="$(mktemp)"
+trap 'rm -f "$empty_env"' EXIT
+chmod 0600 "$empty_env"
+if [ -f "$HOST_ENV_FILE" ]; then
+    validate_runtime_file "$HOST_ENV_FILE"
+else
+    HOST_ENV_FILE="$empty_env"
 fi
 
 SESSION_ID="$(date +%s)-$$"
-GUEST_RUNTIME="/run/vdm-opencode-session/${SESSION_ID}"
+UNIT="vdm-opencode-${SESSION_ID}"
+GUEST_INPUT_DIR="/run/vdm-opencode-input"
+GUEST_CREDENTIAL="${GUEST_INPUT_DIR}/${SESSION_ID}.env"
+EXPIRES_EPOCH="$(($(date +%s) + TTL_SECONDS))"
 
 cleanup() {
-    project_cmd exec "$NAME" -- rm -rf "$GUEST_RUNTIME" >/dev/null 2>&1 || true
+    project_cmd exec "$NAME" -- rm -f "$GUEST_CREDENTIAL" >/dev/null 2>&1 || true
+    project_cmd exec "$NAME" -- rm -rf "/run/vdm-opencode-${SESSION_ID}" >/dev/null 2>&1 || true
+    project_cmd config unset "$NAME" user.vdm.session.id >/dev/null 2>&1 || true
+    project_cmd config unset "$NAME" user.vdm.session.expires_epoch >/dev/null 2>&1 || true
     project_cmd exec "$NAME" -- rm -f \
         "$AGENT_HOME/.local/share/opencode/auth.json" \
         "$AGENT_HOME/.local/share/opencode/mcp-auth.json" >/dev/null 2>&1 || true
+    rm -f "$empty_env"
 }
 trap cleanup EXIT INT TERM
 
-project_cmd exec "$NAME" -- install -d -o "$AGENT_USER" -g "$AGENT_USER" -m 0700 "$GUEST_RUNTIME/data"
-
-log "Starting ephemeral OpenCode session in $NAME"
-project_cmd exec "$NAME" \
-    "${EXEC_ENV[@]}" \
-    --env "HOME=$AGENT_HOME" \
-    --env "USER=$AGENT_USER" \
-    --env "LOGNAME=$AGENT_USER" \
-    --env "PATH=$AGENT_HOME/.local/bin:/usr/local/bin:/usr/bin:/bin" \
-    --env "XDG_DATA_HOME=$GUEST_RUNTIME/data" \
-    --env "VDM_GITEA_BASE_URL=$GITEA_BASE_URL" \
-    --env "VDM_NEXTCLOUD_BASE_URL=$NEXTCLOUD_BASE_URL" \
-    --env "VDM_GITHUB_BASE_URL=$GITHUB_BASE_URL" \
-    --cwd "$WORKSPACE_ROOT" \
-    -- runuser -u "$AGENT_USER" --preserve-environment -- "$AGENT_HOME/.local/bin/opencode"
+project_cmd exec "$NAME" -- install -d -o root -g root -m 0700 "$GUEST_INPUT_DIR"
+project_cmd file push --mode 0600 --uid 0 --gid 0 "$HOST_ENV_FILE" "$NAME$GUEST_CREDENTIAL"
+project_cmd config set "$NAME" user.vdm.session.id "$SESSION_ID"
+project_cmd config set "$NAME" user.vdm.session.expires_epoch "$EXPIRES_EPOCH"
+
+log "Starting isolated OpenCode session in $NAME (TTL: ${TTL_SECONDS}s)"
+project_cmd exec "$NAME" -- systemd-run \
+    --unit="$UNIT" \
+    --service-type=exec \
+    --pty \
+    --wait \
+    --collect \
+    --property="User=$AGENT_USER" \
+    --property="Group=$AGENT_USER" \
+    --property="WorkingDirectory=$WORKSPACE_ROOT" \
+    --property="RuntimeDirectory=vdm-opencode-${SESSION_ID}" \
+    --property="RuntimeDirectoryMode=0700" \
+    --property="RuntimeMaxSec=${TTL_SECONDS}s" \
+    --property="TimeoutStopSec=20s" \
+    --property="KillMode=control-group" \
+    --property="SendSIGKILL=yes" \
+    --property="UMask=0077" \
+    --property="NoNewPrivileges=yes" \
+    --property="PrivateTmp=yes" \
+    --property="ProtectControlGroups=yes" \
+    --property="ProtectKernelTunables=yes" \
+    --property="ProtectKernelModules=yes" \
+    --property="ProtectKernelLogs=yes" \
+    --property="RestrictSUIDSGID=yes" \
+    --property="LoadCredential=session.env:$GUEST_CREDENTIAL" \
+    --setenv="VDM_SESSION_ID=$SESSION_ID" \
+    --setenv="VDM_AGENT_HOME=$AGENT_HOME" \
+    --setenv="VDM_WORKSPACE_ROOT=$WORKSPACE_ROOT" \
+    --setenv="VDM_GITEA_BASE_URL=$GITEA_BASE_URL" \
+    --setenv="VDM_NEXTCLOUD_BASE_URL=$NEXTCLOUD_BASE_URL" \
+    --setenv="VDM_GITHUB_BASE_URL=$GITHUB_BASE_URL" \
+    /usr/local/libexec/vdm-opencode-session
diff --git a/scripts/stop-session.sh b/scripts/stop-session.sh
index 1087638..26d0243 100755
--- a/scripts/stop-session.sh
+++ b/scripts/stop-session.sh
@@ -7,6 +7,12 @@ source "$SCRIPT_DIR/lib/common.sh"
 NAME="${1:-}"
 [ -n "$NAME" ] || die "Usage: $0 INSTANCE_NAME"
 
-project_cmd exec "$NAME" -- pkill -u "$AGENT_USER" -x opencode >/dev/null 2>&1 || true
-project_cmd exec "$NAME" -- rm -rf /run/vdm-opencode-session >/dev/null 2>&1 || true
+# The single-quoted command is intentionally evaluated inside the guest.
+# shellcheck disable=SC2016
+project_cmd exec "$NAME" -- bash -c \
+    'systemctl list-units --type=service --all --no-legend "vdm-opencode-*.service" |
+     awk "{print \$1}" | xargs -r systemctl stop' >/dev/null 2>&1 || true
+project_cmd exec "$NAME" -- rm -rf /run/vdm-opencode-input /run/vdm-opencode-* >/dev/null 2>&1 || true
+project_cmd config unset "$NAME" user.vdm.session.id >/dev/null 2>&1 || true
+project_cmd config unset "$NAME" user.vdm.session.expires_epoch >/dev/null 2>&1 || true
 project_cmd stop "$NAME" --timeout 60
diff --git a/scripts/verify-artifact.sh b/scripts/verify-artifact.sh
new file mode 100755
index 0000000..a7569de
--- /dev/null
+++ b/scripts/verify-artifact.sh
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+PACKAGE_DIR="${1:?package directory required}"
+[ -f "$PACKAGE_DIR/manifest.json" ] || { printf 'manifest.json is missing\n' >&2; exit 1; }
+[ -f "$PACKAGE_DIR/SHA256SUMS" ] || { printf 'SHA256SUMS is missing\n' >&2; exit 1; }
+(
+    cd "$PACKAGE_DIR"
+    sha256sum --check --strict SHA256SUMS
+)
+jq -e '
+  .schema == 2 and
+  (.artifact_id | type == "string") and
+  .platform == "vdm-opencode-platform" and
+  (.version | type == "string") and
+  (.variant | type == "string") and
+  (.architecture == "amd64" or .architecture == "arm64") and
+  (.payload | type == "array" and length > 0)
+' "$PACKAGE_DIR/manifest.json" >/dev/null
+if [ -f "$PACKAGE_DIR/SHA256SUMS.sigstore.json" ]; then
+    : "${COSIGN_PUBLIC_KEY:?COSIGN_PUBLIC_KEY is required to verify a signed artifact}"
+    cosign verify-blob \
+        --key "$COSIGN_PUBLIC_KEY" \
+        --bundle "$PACKAGE_DIR/SHA256SUMS.sigstore.json" \
+        "$PACKAGE_DIR/SHA256SUMS"
+fi
diff --git a/scripts/verify-image.sh b/scripts/verify-image.sh
index ef17dd1..6972741 100755
--- a/scripts/verify-image.sh
+++ b/scripts/verify-image.sh
@@ -26,6 +26,9 @@ project_cmd exec "$INSTANCE" -- test -f /etc/vdm-opencode-platform/build.json
 project_cmd exec "$INSTANCE" -- jq -e --arg variant "$VARIANT" '.variant == $variant' /etc/vdm-opencode-platform/build.json >/dev/null
 project_cmd exec "$INSTANCE" -- test ! -e "/home/$AGENT_USER/.local/share/opencode/auth.json"
 project_cmd exec "$INSTANCE" -- test ! -e "/home/$AGENT_USER/.local/share/opencode/mcp-auth.json"
+project_cmd exec "$INSTANCE" -- test ! -e /opt/vdm-build
+project_cmd exec "$INSTANCE" -- test ! -s /etc/machine-id
+project_cmd exec "$INSTANCE" -- bash -c '! compgen -G "/etc/ssh/ssh_host_*" >/dev/null'
 project_cmd exec "$INSTANCE" -- bash -c \
     '! find /home/opencode -xdev -type f \( -name "id_rsa*" -o -name "id_ed25519*" -o -name ".git-credentials" \) -print -quit | grep -q .'
 
@@ -37,9 +40,9 @@ assert_version \
 assert_version \
     "Git MCP" \
     "$GIT_MCP_EXPECTED_VERSION" \
-    "$(guest_output "/home/$AGENT_USER/.local/share/uv/tools/mcp-server-git/bin/python" -c 'import importlib.metadata; print(importlib.metadata.version("mcp-server-git"))' | tr -d '[:space:]')"
+    "$(guest_output "/home/$AGENT_USER/.local/share/pipx/venvs/mcp-server-git/bin/python" -c 'import importlib.metadata; print(importlib.metadata.version("mcp-server-git"))' | tr -d '[:space:]')"
 
-if [ "$VARIANT" = php ] || [ "$VARIANT" = typescript ] || [ "$VARIANT" = full ]; then
+if image_has_component "$VARIANT" browser; then
     assert_version \
         Playwright \
         "$PLAYWRIGHT_EXPECTED_VERSION" \
@@ -52,7 +55,12 @@ if [ "$VARIANT" = php ] || [ "$VARIANT" = typescript ] || [ "$VARIANT" = full ];
     project_cmd exec "$INSTANCE" -- test -d /opt/ms-playwright
 fi
 
-if [ "$VARIANT" = python ] || [ "$VARIANT" = full ]; then
+if image_has_component "$VARIANT" typescript; then
+    assert_version TypeScript "$TYPESCRIPT_EXPECTED_VERSION" "$(guest_output tsc --version | awk '{print $2}')"
+    assert_version TSX "$TSX_EXPECTED_VERSION" "$(guest_output tsx --version | awk 'NR == 1 {print $2}')"
+fi
+
+if image_has_component "$VARIANT" python; then
     assert_version Ruff "$RUFF_EXPECTED_VERSION" "$(guest_output "/home/$AGENT_USER/.local/bin/ruff" --version | awk '{print $2}')"
     assert_version mypy "$MYPY_EXPECTED_VERSION" "$(guest_output "/home/$AGENT_USER/.local/bin/mypy" --version | awk '{print $2}')"
 fi
diff --git a/security/README.md b/security/README.md
new file mode 100644
index 0000000..885ed5c
--- /dev/null
+++ b/security/README.md
@@ -0,0 +1,9 @@
+# Release signing
+
+Production releases use Cosign with an OpenBao Transit key:
+`openbao://vdm-opencode-release`. Export the public verification key to the
+secured deployment configuration and pass its path as `COSIGN_PUBLIC_KEY`.
+
+The private key must never leave OpenBao. CI receives a short-lived,
+sign-only OpenBao token through its runtime secret store. Private repository
+builds disable public transparency-log upload to avoid disclosing digests.
diff --git a/security/vulnerability-policy.yaml b/security/vulnerability-policy.yaml
new file mode 100644
index 0000000..d9af1b7
--- /dev/null
+++ b/security/vulnerability-policy.yaml
@@ -0,0 +1,5 @@
+schema: 1
+rules:
+  fail_critical: true
+  fail_high_when_fixed: true
+waivers: []
diff --git a/tests/fixtures/session/incus b/tests/fixtures/session/incus
new file mode 100755
index 0000000..fdb571d
--- /dev/null
+++ b/tests/fixtures/session/incus
@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+
+if [ "${1:-}" = info ]; then
+    exit 0
+fi
+if [ "${1:-}" = --project ]; then
+    shift 2
+fi
+
+printf '%q ' "$@" >> "${MOCK_INCUS_LOG:?MOCK_INCUS_LOG is required}"
+printf '\n' >> "$MOCK_INCUS_LOG"
+
+case "${1:-}:${2:-}" in
+    list:--format)
+        cat "${MOCK_INCUS_LIST:?MOCK_INCUS_LIST is required for list}"
+        ;;
+    info:*|start:*|stop:*|config:set|config:unset|file:push|exec:*)
+        exit 0
+        ;;
+    *)
+        printf 'Unexpected session mock Incus invocation: %s\n' "$*" >&2
+        exit 1
+        ;;
+esac
diff --git a/tests/generated-platform.sh b/tests/generated-platform.sh
new file mode 100755
index 0000000..39d56d3
--- /dev/null
+++ b/tests/generated-platform.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
+
+python3 "$ROOT_DIR/scripts/generate-platform.py" --check
+# shellcheck disable=SC1091
+source "$ROOT_DIR/scripts/lib/common.sh"
+
+for image in "${PLATFORM_IMAGES[@]}"; do
+    variant_exists "$image"
+    test -f "$ROOT_DIR/incus/profiles/generated/images/$image.yaml"
+    for component in ${PLATFORM_IMAGE_COMPONENTS[$image]}; do
+        provision="${PLATFORM_COMPONENT_PROVISION[$component]:-}"
+        [ -z "$provision" ] || test -f "$ROOT_DIR/image/provision/$provision"
+    done
+done
+
+for policy in "${!PLATFORM_POLICY_STATUS[@]}"; do
+    test -f "$ROOT_DIR/incus/profiles/generated/policies/$policy.yaml"
+    test -f "$ROOT_DIR/incus/acls/generated/$policy.yaml"
+done
+for size in "${!PLATFORM_SIZE_CPUS[@]}"; do
+    test -f "$ROOT_DIR/incus/profiles/generated/sizes/$size.yaml"
+done
+
+github="$(python3 "$ROOT_DIR/scripts/generate-platform.py" --matrix github)"
+gitea="$(python3 "$ROOT_DIR/scripts/generate-platform.py" --matrix gitea)"
+[ "$github" = "$gitea" ]
+printf 'Generated platform tests passed.\n'
diff --git a/tests/package-roundtrip.sh b/tests/package-roundtrip.sh
index 96b000b..4822c6d 100755
--- a/tests/package-roundtrip.sh
+++ b/tests/package-roundtrip.sh
@@ -12,10 +12,12 @@ output_dir="$tmp_dir/package"
 "$ROOT_DIR/scripts/package-image.sh" base "$output_dir"
 
 jq -e '
-    .schema == 1 and
+    .schema == 2 and
     .platform == "vdm-opencode-platform" and
-    .version == "0.2.0" and
+    .version == "0.3.0-rc.1" and
     .variant == "base" and
+    .architecture == "amd64" and
+    .artifact_id == "vdm-opencode-base-0.3.0-rc.1-amd64" and
     (.payload | length == 2)
 ' "$output_dir/manifest.json" >/dev/null
 
@@ -27,4 +29,10 @@ jq -e '
 "$ROOT_DIR/scripts/import-image-package.sh" "$output_dir" "vdm-opencode-base/test"
 grep -Eq 'image import .*\.tar .*\.rootfs --alias vdm-opencode-base/test' "$MOCK_INCUS_LOG"
 
+printf 'tampered\n' >> "$(find "$output_dir/payload" -type f | head -n 1)"
+if "$ROOT_DIR/scripts/verify-artifact.sh" "$output_dir" >/dev/null 2>&1; then
+    printf 'Tampered payload should have been rejected.\n' >&2
+    exit 1
+fi
+
 printf 'Image package round-trip test passed.\n'
diff --git a/tests/reaper.sh b/tests/reaper.sh
new file mode 100755
index 0000000..fdaaeac
--- /dev/null
+++ b/tests/reaper.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
+tmp_dir="$(mktemp -d)"
+trap 'rm -rf "$tmp_dir"' EXIT
+
+export PATH="$ROOT_DIR/tests/fixtures/session:$PATH"
+export MOCK_INCUS_LOG="$tmp_dir/incus.log"
+export MOCK_INCUS_LIST="$tmp_dir/list.json"
+cat > "$MOCK_INCUS_LIST" <<'JSON'
+[
+  {"name":"expired","status":"Running","config":{"user.vdm.session.expires_epoch":"100"}},
+  {"name":"unexpired","status":"Running","config":{"user.vdm.session.expires_epoch":"300"}},
+  {"name":"malformed","status":"Running","config":{"user.vdm.session.expires_epoch":"tomorrow"}},
+  {"name":"no-expiry","status":"Running","config":{}},
+  {"name":"already-stopped","status":"Stopped","config":{"user.vdm.session.expires_epoch":"50"}}
+]
+JSON
+
+VDM_REAPER_NOW=200 "$ROOT_DIR/scripts/reap-expired-vms.sh"
+grep -E '^stop expired ' "$MOCK_INCUS_LOG" >/dev/null
+if grep -E '^stop (unexpired|malformed|no-expiry|already-stopped) ' "$MOCK_INCUS_LOG"; then
+    printf 'Reaper stopped a VM that should have remained untouched.\n' >&2
+    exit 1
+fi
+
+# Simulate Incus state after the first stop and prove a second pass is a no-op.
+printf '[{"name":"expired","status":"Stopped","config":{}}]\n' > "$MOCK_INCUS_LIST"
+: > "$MOCK_INCUS_LOG"
+VDM_REAPER_NOW=200 "$ROOT_DIR/scripts/reap-expired-vms.sh"
+if grep -E '^stop ' "$MOCK_INCUS_LOG"; then
+    printf 'Second reaper pass was not idempotent.\n' >&2
+    exit 1
+fi
+printf 'VM expiry reaper tests passed.\n'
diff --git a/tests/security-static.py b/tests/security-static.py
new file mode 100644
index 0000000..0356da6
--- /dev/null
+++ b/tests/security-static.py
@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import unittest
+from pathlib import Path
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+class SecurityStaticTest(unittest.TestCase):
+    def test_incus_project_restrictions(self) -> None:
+        project = yaml.safe_load((ROOT / "incus/projects/vdm-agents.yaml").read_text())
+        config = project["config"]
+        self.assertEqual("true", config["restricted"])
+        self.assertEqual("managed", config["restricted.devices.disk"])
+        self.assertEqual("managed", config["restricted.devices.nic"])
+        for key in (
+            "restricted.devices.gpu",
+            "restricted.devices.pci",
+            "restricted.devices.proxy",
+            "restricted.devices.usb",
+            "restricted.virtual-machines.lowlevel",
+        ):
+            self.assertEqual("block", config[key])
+
+    def test_generated_network_profiles_fail_closed(self) -> None:
+        for path in (ROOT / "incus/profiles/generated/policies").glob("*.yaml"):
+            profile = yaml.safe_load(path.read_text())
+            nic = profile["devices"]["eth0"]
+            self.assertEqual("reject", nic["security.acls.default.ingress.action"])
+            self.assertEqual("reject", nic["security.acls.default.egress.action"])
+            self.assertEqual("true", nic["security.ipv4_filtering"])
+
+    def test_connected_policy_denies_private_networks_before_public_allow(self) -> None:
+        acl = yaml.safe_load((ROOT / "incus/acls/generated/connected.yaml").read_text())
+        rules = acl["egress"]
+        final_allow = max(index for index, rule in enumerate(rules) if rule["action"] == "allow")
+        for network in ("10.0.0.0/8", "100.64.0.0/10", "169.254.0.0/16", "172.16.0.0/12", "192.168.0.0/16"):
+            index = next(i for i, rule in enumerate(rules) if rule.get("destination") == network)
+            self.assertLess(index, final_allow)
+            self.assertEqual("reject", rules[index]["action"])
+
+    def test_session_secrets_do_not_enter_incus_arguments(self) -> None:
+        session = (ROOT / "scripts/start-session.sh").read_text()
+        self.assertNotIn('--env "$line"', session)
+        self.assertIn("LoadCredential=session.env:", session)
+        self.assertIn("RuntimeMaxSec=", session)
+        self.assertIn("KillMode=control-group", session)
+        self.assertIn("user.vdm.session.expires_epoch", session)
+        for forbidden in ("OPENAI_API_KEY", "ANTHROPIC_API_KEY", "GEMINI_API_KEY", "XAI_API_KEY", "LD_PRELOAD", "BASH_ENV"):
+            self.assertNotIn(forbidden, session)
+
+    def test_all_provider_routes_exist(self) -> None:
+        config = yaml.safe_load((ROOT / "broker/config/litellm.yaml").read_text())
+        routes = {entry["model_name"] for entry in config["model_list"]}
+        self.assertEqual(
+            {"openai-default", "anthropic-default", "gemini-default", "xai-default", "local-default"},
+            routes,
+        )
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/session-secret-transport.sh b/tests/session-secret-transport.sh
new file mode 100755
index 0000000..82b685e
--- /dev/null
+++ b/tests/session-secret-transport.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -Eeuo pipefail
+ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
+tmp_dir="$(mktemp -d)"
+trap 'rm -rf "$tmp_dir"' EXIT
+
+export PATH="$ROOT_DIR/tests/fixtures/session:$PATH"
+export MOCK_INCUS_LOG="$tmp_dir/incus.log"
+export MOCK_INCUS_LIST="$tmp_dir/list.json"
+printf '[]\n' > "$MOCK_INCUS_LIST"
+runtime_file="$tmp_dir/runtime.env"
+sentinel="never-appear-in-incus-argv-7f3d9a"
+printf 'GITHUB_MCP_TOKEN=%s\n' "$sentinel" > "$runtime_file"
+chmod 0600 "$runtime_file"
+
+"$ROOT_DIR/scripts/start-session.sh" test-vm "$runtime_file" 60s
+if grep -F "$sentinel" "$MOCK_INCUS_LOG"; then
+    printf 'Secret value leaked into an Incus process argument.\n' >&2
+    exit 1
+fi
+grep -F 'LoadCredential=session.env:' "$MOCK_INCUS_LOG" >/dev/null
+printf 'Session secret transport test passed.\n'
diff --git a/tests/test_platform_manifest.py b/tests/test_platform_manifest.py
new file mode 100644
index 0000000..8a9596d
--- /dev/null
+++ b/tests/test_platform_manifest.py
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+from __future__ import annotations
+
+import json
+import subprocess
+import unittest
+from pathlib import Path
+
+import yaml
+
+
+ROOT = Path(__file__).resolve().parents[1]
+MANIFEST = ROOT / "manifest/images.yaml"
+GENERATOR = ROOT / "scripts/generate-platform.py"
+
+
+class PlatformManifestTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls) -> None:
+        cls.data = yaml.safe_load(MANIFEST.read_text(encoding="utf-8"))
+
+    def test_authority_and_ownership(self) -> None:
+        self.assertEqual(2, self.data["schema"])
+        platform = self.data["platform"]
+        self.assertEqual((ROOT / "VERSION").read_text(encoding="utf-8").strip(), platform["version"])
+        self.assertEqual("GPL-3.0-only", platform["license"])
+        self.assertEqual("Vast Development Method", platform["copyright"]["holder"])
+
+    def test_supported_languages_are_intentional(self) -> None:
+        languages = set(self.data["dimensions"]["languages"])
+        self.assertTrue({"shell", "php", "python", "node", "typescript", "c", "cpp"} <= languages)
+        self.assertFalse({"rust", "go", "java"} & languages)
+
+    def test_capability_policy_and_size_catalogs(self) -> None:
+        dimensions = self.data["dimensions"]
+        self.assertTrue({"cpu", "browser", "database", "android", "gpu"} <= set(dimensions["capabilities"]))
+        self.assertGreaterEqual(len(dimensions["policies"]), 5)
+        self.assertGreaterEqual(len(dimensions["sizes"]), 5)
+        self.assertEqual("planned", dimensions["capabilities"]["android"]["status"])
+        self.assertEqual("planned", dimensions["capabilities"]["gpu"]["status"])
+
+    def test_provider_matrices_are_identical_and_complete(self) -> None:
+        outputs = []
+        for provider in ("github", "gitea"):
+            result = subprocess.run(
+                ["python3", str(GENERATOR), "--matrix", provider],
+                check=True,
+                capture_output=True,
+                text=True,
+            )
+            outputs.append(json.loads(result.stdout))
+        self.assertEqual(outputs[0], outputs[1])
+        expected = {
+            (name, architecture)
+            for architecture, spec in self.data["platform"]["architectures"].items()
+            if spec["release"]
+            for name, image in self.data["images"].items()
+            if image["release"]
+        }
+        actual = {(entry["variant"], entry["architecture"]) for entry in outputs[0]["include"]}
+        self.assertEqual(expected, actual)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/tests/validate-repository.sh b/tests/validate-repository.sh
index 6ccff56..add0876 100755
--- a/tests/validate-repository.sh
+++ b/tests/validate-repository.sh
@@ -5,19 +5,33 @@ ROOT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")/.." && pwd)"
 fail=0
 
 find_args=("$ROOT_DIR" -type f -not -path "$ROOT_DIR/.git/*" -not -path "$ROOT_DIR/build/*")
+extra_shell=(
+    "$ROOT_DIR/image/files/usr/local/libexec/vdm-opencode-session"
+    "$ROOT_DIR/tests/fixtures/incus"
+    "$ROOT_DIR/tests/fixtures/session/incus"
+)
 
 while IFS= read -r -d '' script; do
     bash -n "$script" || fail=1
 done < <(find "${find_args[@]}" -name '*.sh' -print0)
+for script in "${extra_shell[@]}"; do
+    bash -n "$script" || fail=1
+done
 
 if command -v shellcheck >/dev/null 2>&1; then
     mapfile -d '' scripts < <(find "${find_args[@]}" -name '*.sh' -print0)
     if (("${#scripts[@]}" > 0)); then
-        shellcheck -x "${scripts[@]}" || fail=1
+        shellcheck -x "${scripts[@]}" "${extra_shell[@]}" || fail=1
     fi
 fi
 
 bash "$ROOT_DIR/tests/variant-selection.sh" || fail=1
+python3 "$ROOT_DIR/scripts/generate-platform.py" --check || fail=1
+python3 -m unittest "$ROOT_DIR/tests/test_platform_manifest.py" || fail=1
+python3 -m unittest "$ROOT_DIR/tests/security-static.py" || fail=1
+bash "$ROOT_DIR/tests/generated-platform.sh" || fail=1
+bash "$ROOT_DIR/tests/session-secret-transport.sh" || fail=1
+bash "$ROOT_DIR/tests/reaper.sh" || fail=1
 
 if command -v make >/dev/null 2>&1; then
     make -C "$ROOT_DIR" --dry-run help local-release >/dev/null || fail=1
@@ -59,6 +73,16 @@ if grep -RIE '\$\{\{[[:space:]]*github\.' "$ROOT_DIR/.gitea/workflows"; then
     fail=1
 fi
 
+if grep -RIE 'variant:[[:space:]]*\[' "$ROOT_DIR/.github/workflows" "$ROOT_DIR/.gitea/workflows"; then
+    printf 'A workflow contains a hand-maintained image matrix.\n' >&2
+    fail=1
+fi
+
+if grep -RIE 'curl[^|]*\|[[:space:]]*(bash|sh)' "$ROOT_DIR/image" "$ROOT_DIR/scripts"; then
+    printf 'A network-delivered script is executed without a pinned intermediate file.\n' >&2
+    fail=1
+fi
+
 if grep -RIE \
     --exclude-dir=.git \
     --exclude='*.md' \
diff --git a/tests/variant-selection.sh b/tests/variant-selection.sh
old mode 100644
new mode 100755
index 795824e..bcb4184
--- a/tests/variant-selection.sh
+++ b/tests/variant-selection.sh
@@ -27,7 +27,7 @@ assert_rejected() {
     fi
 }
 
-assert_selection "all" "base php python cpp typescript full"
+assert_selection "all" "${PLATFORM_RELEASE_IMAGES[*]}"
 assert_selection "php,typescript,full" "php typescript full"
 assert_selection $'php  typescript\nfull' "php typescript full"
 assert_selection "php,php,full" "php full"