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905 lines (848 loc) · 54.1 KB
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<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>ProjecturEd — a generic-purpose projectional editor</title>
<meta name="description" content="ProjecturEd is a generic-purpose projectional editor. Keep your document as what it really is — a tree, a table, a graph — and project it into as many editable notations as you need.">
<meta name="theme-color" content="#f0f1f3" media="(prefers-color-scheme: light)">
<meta name="theme-color" content="#0e1116" media="(prefers-color-scheme: dark)">
<meta property="og:type" content="website">
<meta property="og:title" content="ProjecturEd — an AI-native projectional editor">
<meta property="og:description" content="One structure, seen every way — and editable every way. Humans and AI edit trees, tables, and graphs through multiple, simultaneous, bidirectional projections.">
<meta property="og:url" content="https://projectured.github.io">
<meta property="og:image" content="https://projectured.github.io/assets/og.png">
<meta property="og:image:width" content="1200">
<meta property="og:image:height" content="630">
<meta property="og:image:alt" content="ProjecturEd — an AI-native projectional editor">
<meta name="twitter:card" content="summary_large_image">
<meta name="twitter:title" content="ProjecturEd — an AI-native projectional editor">
<meta name="twitter:description" content="One structure, seen every way — and editable every way. Humans and AI edit one shared model.">
<meta name="twitter:image" content="https://projectured.github.io/assets/og.png">
<link rel="icon" href="data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Crect width='32' height='32' rx='6' fill='%230e1116'/%3E%3Ccircle cx='9' cy='16' r='2.4' fill='%235b7bff'/%3E%3Cg stroke='%235b7bff' stroke-width='1.6' fill='none'%3E%3Cpath d='M11 16 L23 8'/%3E%3Cpath d='M11 16 L23 16'/%3E%3Cpath d='M11 16 L23 24'/%3E%3C/g%3E%3Cg fill='%23e6e9ee'%3E%3Crect x='22' y='6' width='5' height='4' rx='1'/%3E%3Crect x='22' y='14' width='5' height='4' rx='1'/%3E%3Crect x='22' y='22' width='5' height='4' rx='1'/%3E%3C/g%3E%3C/svg%3E">
<style>
:root {
--paper: #f0f1f3;
--paper-2: #e7e9ee;
--surface: #fbfcfd;
--ink: #15181d;
--ink-soft: #545b66;
--ink-faint: #8a919c;
--line: rgba(21, 24, 29, 0.14);
--line-soft: rgba(21, 24, 29, 0.08);
--accent: #2e5bff;
--accent-ink: #1f3fcf;
--accent-soft:rgba(46, 91, 255, 0.10);
--signal: #e0533a;
--grid-dot: rgba(21, 24, 29, 0.06);
--mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
--step--1: clamp(0.78rem, 0.75rem + 0.1vw, 0.83rem);
--step-0: clamp(0.98rem, 0.94rem + 0.2vw, 1.06rem);
--step-1: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
--step-2: clamp(1.5rem, 1.25rem + 1.1vw, 2.1rem);
--step-3: clamp(2.2rem, 1.6rem + 2.9vw, 3.9rem);
--wrap: 1200px;
--pad: clamp(1.2rem, 5vw, 3rem);
}
@media (prefers-color-scheme: dark) {
:root {
--paper: #0e1116;
--paper-2: #0a0c10;
--surface: #161a21;
--ink: #e6e9ee;
--ink-soft: #a6adba;
--ink-faint: #6c7480;
--line: rgba(230, 233, 238, 0.13);
--line-soft: rgba(230, 233, 238, 0.07);
--accent: #5b7bff;
--accent-ink: #8aa0ff;
--accent-soft:rgba(91, 123, 255, 0.14);
--signal: #ff6a52;
--grid-dot: rgba(230, 233, 238, 0.055);
}
}
:root[data-theme="light"] {
--paper:#f0f1f3; --paper-2:#e7e9ee; --surface:#fbfcfd; --ink:#15181d;
--ink-soft:#545b66; --ink-faint:#8a919c; --line:rgba(21,24,29,0.14);
--line-soft:rgba(21,24,29,0.08); --accent:#2e5bff; --accent-ink:#1f3fcf;
--accent-soft:rgba(46,91,255,0.10); --signal:#e0533a; --grid-dot:rgba(21,24,29,0.06);
}
:root[data-theme="dark"] {
--paper:#0e1116; --paper-2:#0a0c10; --surface:#161a21; --ink:#e6e9ee;
--ink-soft:#a6adba; --ink-faint:#6c7480; --line:rgba(230,233,238,0.13);
--line-soft:rgba(230,233,238,0.07); --accent:#5b7bff; --accent-ink:#8aa0ff;
--accent-soft:rgba(91,123,255,0.14); --signal:#ff6a52; --grid-dot:rgba(230,233,238,0.055);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
margin: 0;
font-family: var(--sans);
font-size: var(--step-0);
line-height: 1.6;
color: var(--ink);
background-color: var(--paper);
background-image: radial-gradient(var(--grid-dot) 1px, transparent 1.1px);
background-size: 22px 22px;
background-position: -1px -1px;
-webkit-font-smoothing: antialiased;
text-rendering: optimizeLegibility;
overflow-x: hidden;
}
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }
a { color: var(--accent-ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }
.skip {
position: absolute; left: -9999px; top: 0; z-index: 20;
background: var(--accent); color: #fff; padding: .55rem 1rem;
font-family: var(--mono); font-size: var(--step--1); border-radius: 0 0 6px 0;
}
.skip:focus { left: 0; }
.eyebrow {
font-family: var(--mono);
font-size: var(--step--1);
letter-spacing: 0.16em;
text-transform: uppercase;
color: var(--ink-faint);
display: inline-flex; align-items: center; gap: .55rem;
margin: 0;
}
.eyebrow::before {
content: ""; width: 1.6rem; height: 1px; background: var(--line);
}
.eyebrow--plain::before { display: none; }
h1, h2, h3 { font-family: var(--mono); font-weight: 600; letter-spacing: -0.01em; text-wrap: balance; }
/* ---------- top bar ---------- */
.topbar {
position: sticky; top: 0; z-index: 15;
border-bottom: 1px solid var(--line-soft);
background: color-mix(in srgb, var(--paper) 86%, transparent);
backdrop-filter: blur(8px);
}
.topbar__in {
display: flex; align-items: center; justify-content: space-between; gap: 1rem;
height: 58px;
}
.brand { font-family: var(--mono); font-weight: 600; font-size: 1.02rem; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; white-space: nowrap; }
.brand b { color: var(--accent); font-weight: 600; }
.brand:hover { color: var(--ink); }
.navlinks { display: flex; gap: clamp(.7rem, 2.5vw, 1.6rem); flex-wrap: wrap; }
.navlinks a {
font-family: var(--mono); font-size: var(--step--1);
color: var(--ink-soft); text-decoration: none; letter-spacing: 0.02em;
}
.navlinks a:hover { color: var(--accent); }
@media (max-width: 620px) { .navlinks { display: none; } }
/* ---------- hero ---------- */
.hero { padding-block: clamp(2.6rem, 7vw, 5.4rem) clamp(2rem, 5vw, 3.4rem); }
.hero__copy { max-width: 52ch; }
.hero__shot { margin-top: clamp(2.2rem, 5vw, 3.6rem); }
.hero__shot img {
width: 100%; height: auto; display: block;
border: 1px solid var(--line); border-radius: 12px; background: var(--paper-2);
}
.hero__shot figcaption {
font-family: var(--mono); font-size: var(--step--1); color: var(--ink-faint);
letter-spacing: 0.04em; margin-top: 1rem; text-align: center;
}
.hero h1 { font-size: var(--step-3); line-height: 1.02; margin: 1rem 0 0; }
.hero h1 .dim { color: var(--ink-faint); }
.hero h1 .hl { color: var(--accent); }
.hero__lede {
margin: 1.3rem 0 0; max-width: 44ch; color: var(--ink-soft);
font-size: var(--step-1); line-height: 1.55;
}
.cta-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.9rem; align-items: center; }
.btn {
font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.02em;
padding: .72rem 1.15rem; border-radius: 7px; text-decoration: none;
display: inline-flex; align-items: center; gap: .5rem; border: 1px solid transparent;
transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { color: #fff; transform: translateY(-2px); background: var(--accent-ink); }
.btn--ghost { border-color: var(--line); color: var(--ink); background: var(--surface); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.textlink {
font-family: var(--mono); font-size: var(--step--1); color: var(--ink-soft);
text-decoration: none; border-bottom: 1px dashed var(--line); padding-bottom: 2px;
}
.textlink:hover { color: var(--accent); border-color: var(--accent); }
/* ---------- showcase video ---------- */
.showcase { margin: 2.4rem 0 0; }
.showcase video {
width: 100%; height: auto; display: block; aspect-ratio: 16 / 9;
border: 1px solid var(--line); border-radius: 12px; background: var(--paper-2);
}
.showcase figcaption {
font-family: var(--mono); font-size: var(--step--1); color: var(--ink-faint);
letter-spacing: 0.04em; margin-top: 1rem; text-align: center;
}
/* ---------- examples ---------- */
.examples-grid { display: grid; grid-template-columns: 1fr; gap: 1.4rem; margin-top: 2.6rem; align-items: start; }
@media (min-width: 780px) { .examples-grid { grid-template-columns: 1fr 1fr; } }
.ex { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--surface); display: flex; flex-direction: column; min-width: 0; }
.ex__media { margin: 0; background: var(--paper-2); border-bottom: 1px solid var(--line); display: flex; justify-content: center; align-items: center; }
.ex__media img, .ex__media video { display: block; width: 100%; height: auto; max-height: 340px; object-fit: contain; object-position: center; }
.ex__body { padding: 1.15rem 1.25rem 1.35rem; display: flex; flex-direction: column; gap: .55rem; min-width: 0; }
.ex__body h3 { font-family: var(--mono); font-size: 1rem; margin: 0; letter-spacing: -0.01em; }
.ex__body p { margin: 0; color: var(--ink-soft); font-size: var(--step-0); line-height: 1.5; }
.ex__code { margin: .5rem 0 0; max-width: 100%; background: var(--paper-2); border: 1px solid var(--line-soft); border-radius: 8px; padding: .8rem .9rem; overflow-x: auto; }
.ex__code code { font-family: var(--mono); font-size: 0.76rem; line-height: 1.55; color: var(--ink); white-space: pre; display: block; }
.ex__code .c { color: var(--ink-faint); }
.ex--wide { grid-column: 1 / -1; }
.ex--wide .ex__media img { max-height: none; }
@media (min-width: 780px) {
.ex--wide { flex-direction: row; align-items: stretch; }
.ex--wide .ex__media { border-bottom: 0; border-right: 1px solid var(--line); flex: 0 0 42%; }
.ex--wide .ex__media img { max-height: 520px; }
.ex--wide .ex__body { flex: 1; justify-content: center; }
}
/* ---------- sections ---------- */
section { padding-block: clamp(3rem, 7vw, 5.5rem); border-top: 1px solid var(--line-soft); }
.section-head { max-width: 60ch; }
.section-head h2 { font-size: var(--step-2); line-height: 1.12; margin: .9rem 0 0; }
.section-head p { color: var(--ink-soft); margin: 1rem 0 0; font-size: var(--step-1); line-height: 1.55; }
/* idea */
.idea__body { display: grid; grid-template-columns: 1fr; gap: 1.4rem; margin-top: 2.4rem; }
@media (min-width: 760px) { .idea__body { grid-template-columns: 1fr 1fr; gap: 2.2rem; } }
.idea__body p { margin: 0; color: var(--ink-soft); max-width: 62ch; }
.idea__body p strong { color: var(--ink); font-weight: 600; }
.contrast {
margin-top: 2.6rem; border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
display: grid; grid-template-columns: 1fr; background: var(--surface);
}
@media (min-width: 680px) { .contrast { grid-template-columns: 1fr 1fr; } }
.contrast > div { padding: 1.5rem clamp(1.2rem, 3vw, 1.9rem); }
.contrast > div + div { border-top: 1px solid var(--line); }
@media (min-width: 680px) { .contrast > div + div { border-top: 0; border-left: 1px solid var(--line); } }
.contrast .tag { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.contrast .this { color: var(--accent); }
.contrast h3 { font-size: var(--step-1); margin: .5rem 0 .4rem; }
.contrast p { margin: 0; color: var(--ink-soft); font-size: var(--step-0); }
/* comparison matrix */
.vs { margin-top: 2.6rem; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--surface); }
.vs__row { display: grid; grid-template-columns: 1fr; }
@media (min-width: 720px) { .vs__row { grid-template-columns: 1fr 1fr; } }
.vs__row + .vs__row { border-top: 1px solid var(--line); }
.vs__cell { padding: 1.5rem clamp(1.2rem, 3vw, 1.9rem); }
.vs__cell + .vs__cell { border-top: 1px solid var(--line); }
@media (min-width: 720px) { .vs__cell + .vs__cell { border-top: 0; border-left: 1px solid var(--line); } }
.vs__cell--this { background: var(--accent-soft); }
.vs .tag { font-family: var(--mono); font-size: var(--step--1); letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }
.vs .tag.this { color: var(--accent); }
.vs h3 { font-size: var(--step-1); margin: .5rem 0 .4rem; }
.vs p { margin: 0; color: var(--ink-soft); font-size: var(--step-0); line-height: 1.5; }
/* capabilities */
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</style>
</head>
<body>
<a class="skip" href="#idea">Skip to content</a>
<header class="topbar">
<div class="wrap topbar__in">
<a class="brand" href="#top">Projectur<b>Ed</b></a>
<nav class="navlinks" aria-label="Primary">
<a href="#idea">The idea</a>
<a href="#compare">Compared</a>
<a href="#capabilities">Capabilities</a>
<a href="#ai">AI</a>
<a href="#showcase">Demo</a>
<a href="#examples">Examples</a>
<a href="#domains">Catalog</a>
<a href="#status">Lineage</a>
</nav>
</div>
</header>
<main id="top">
<!-- HERO -->
<section class="hero" style="border-top:0">
<div class="wrap">
<div class="hero__copy">
<p class="eyebrow">AI-native · generic-purpose projectional editor</p>
<h1>One structure,<br><span class="dim">seen every way</span> —<br>and <span class="hl">editable</span> every way.</h1>
<p class="hero__lede">
ProjecturEd keeps your document as what it really is — a tree, a table, a graph — and
projects it into as many notations as you need. Edit any projection and the change
flows to every other view. Humans and AI work one shared model — and neither can break it.
</p>
<div class="cta-row">
<a class="btn btn--primary" href="#idea">Explore the idea →</a>
<a class="btn btn--ghost" href="mailto:projectured@gmail.com">Get in touch</a>
<a class="textlink" href="#showcase" style="margin-left:.4rem">watch it in motion ↓</a>
</div>
</div>
<figure class="hero__shot" data-reveal>
<img src="assets/hero.jpg" width="1600" height="900" loading="eager" decoding="async"
alt="ProjecturEd building an M/M/1/K queueing study — prose and a rendered blocking-probability formula beside a results table and a chart, with the built-in AI assistant running the OMNeT++ simulation.">
<figcaption>the editor building an OMNeT++ study — assistant, math, tables, and charts in one document</figcaption>
</figure>
</div>
</section>
<!-- IDEA -->
<section id="idea">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">The idea</p>
<h2>You don't edit text. You edit the thing the text is about.</h2>
</div>
<div class="idea__body">
<p data-reveal>
A conventional editor stores your work as a flat string of characters and leaves the
structure — the objects, the relationships — implicit. ProjecturEd flips that around.
<strong>The document is the structure.</strong> What you see on screen is a
<em>projection</em> of it: one of possibly many notations, generated from the underlying data.
</p>
<p data-reveal>
Because each projection is generated, it can be anything — a block of JSON, an indented
outline, a spreadsheet, a wiring diagram, a page of formatted prose. And because ProjecturEd
knows how each projection was produced, it can run that mapping <strong>backwards</strong>:
your edits to the projection become edits to the data itself.
</p>
</div>
<div class="contrast" data-reveal>
<div>
<span class="tag">A text editor</span>
<h3>Characters, structure implied</h3>
<p>Your data is a string. Structure lives only in your head and in fragile parsing. One notation, take it or leave it.</p>
</div>
<div>
<span class="tag this">ProjecturEd</span>
<h3>Structure, notation projected</h3>
<p>Your data is a tree, a table, a graph. Notations are projections of it — as many as you like, each one editable, all kept in sync.</p>
</div>
</div>
</div>
</section>
<!-- COMPARE -->
<section id="compare">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">Compared</p>
<h2>Two differences that actually matter.</h2>
</div>
<div class="vs" data-reveal>
<div class="vs__row">
<div class="vs__cell vs__cell--them">
<span class="tag">Ordinary software</span>
<h3>One fixed interface</h3>
<p>A spreadsheet gives you a grid; every other app gives you its own single way of working. Your data is forced into whatever shape the tool happens to offer — and copied into the next tool the moment you need a different one.</p>
</div>
<div class="vs__cell vs__cell--this">
<span class="tag this">ProjecturEd</span>
<h3>The interface is a projection</h3>
<p>One model underneath; every view — grid, outline, form, diagram, dashboard — is a projection of it. Pick the one that fits, or build a new one. Nothing is duplicated, and every view stays in sync.</p>
</div>
</div>
<div class="vs__row">
<div class="vs__cell vs__cell--them">
<span class="tag">Today's AI assistants</span>
<h3>They edit text</h3>
<p>The assistant writes characters and hopes the software reads them as intended. Structure is guessed after the fact, and breaks when the guess is wrong.</p>
</div>
<div class="vs__cell vs__cell--this">
<span class="tag this">ProjecturEd</span>
<h3>It edits meaning</h3>
<p>The assistant works the same model you do — changing objects, relationships, and diagrams directly, never strings. Same operations, same model, same truth for you and the AI.</p>
</div>
</div>
</div>
</div>
</section>
<!-- CAPABILITIES -->
<section id="capabilities">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">Capabilities</p>
<h2>What a projectional editor makes possible.</h2>
</div>
<div class="caps">
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6"><rect x="5" y="5" width="22" height="22" rx="5"/><circle cx="16" cy="16" r="2.6" fill="currentColor" stroke="none"/><circle cx="16" cy="16" r="7.5" stroke-dasharray="2 3"/><path d="M16 5 v3 M16 24 v3 M5 16 h3 M24 16 h3" stroke-linecap="round"/></svg></div>
<h3>AI-native, fully reflective</h3>
<p>An AI edits the same living model you do — reading the document and the editor's own capabilities, targeting meaning, not line numbers. Like you, it can't produce an invalid edit.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linejoin="round"><rect x="4" y="4" width="24" height="24" rx="3"/><circle cx="16" cy="16" r="8"/><path d="M16 11.5 l4 7 h-8 z" fill="currentColor" stroke="none"/></svg></div>
<h3>Arbitrarily mixable domains</h3>
<p>Put any content inside any other — a formula in a table cell, JSON inside prose. Navigation and editing cross the seams, and any fragment is a full document on its own.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6"><circle cx="7" cy="16" r="2.4" fill="currentColor" stroke="none"/><path d="M9 16 L25 7 M9 16 L25 16 M9 16 L25 25" stroke-linecap="round"/><rect x="24" y="5" width="5" height="4" rx="1" fill="currentColor" stroke="none"/><rect x="24" y="14" width="5" height="4" rx="1" fill="currentColor" stroke="none"/><rect x="24" y="23" width="5" height="4" rx="1" fill="currentColor" stroke="none"/></svg></div>
<h3>Composable projections</h3>
<p>Notations compose like functions — chain them into pipelines, nest, sort, filter, or focus. Composition is predictable and well-defined: a sorted or filtered view is still fully editable, because each layer maps your edits back through the one beneath it.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linejoin="round"><rect x="3" y="7" width="16" height="12" rx="2"/><path d="M6.5 11 l2.5 2 -2.5 2" stroke-linecap="round"/><path d="M8 23 h6 M11 19 v4" stroke-linecap="round"/><rect x="21" y="11" width="8" height="15" rx="2"/></svg></div>
<h3>Runs everywhere</h3>
<p>The same editor, unchanged, in a native window, a terminal, or the browser — or headless, exporting print-quality PDF and images. Run it from source, or as a single standalone binary.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M8 7 h6 M8 7 v18 M8 16 h6 M8 25 h6 M20 7 h4 M20 16 h4 M20 25 h4"/></svg></div>
<h3>Structure, never text</h3>
<p>You edit the model directly, so you can't type a syntax error and the caret never lands anywhere meaningless. What's on screen is always the truth.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M4 18 h6 l3 -9 4 15 3 -8 h8"/></svg></div>
<h3>Incremental & reactive</h3>
<p>Only what changed is recomputed, and only what's on screen is ever drawn — a ten-thousand-row document stays instant. Reactivity is fine-grained and opt-in: static, mutable, and reactive values mix freely, so you pay only for what truly has to recompute.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6"><circle cx="16" cy="16" r="12"/><path d="M13 10.5 l9 5.5 -9 5.5 z" fill="currentColor" stroke="none"/></svg></div>
<h3>Playback & recording</h3>
<p>Drive any session from a script, then capture it — live playback, headless screenshots, and recorded video, with no display required.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M16 4 l10 4 v7 c0 7 -5 10 -10 13 c-5 -3 -10 -6 -10 -13 v-7 z"/><path d="M11 16 l4 4 7 -8"/></svg></div>
<h3>Tested by construction</h3>
<p>A comprehensive automatic test suite exercises every projection, reader, and domain — built to rule out whole classes of errors, not chase them one at a time.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M13 7 h-3 a2 2 0 0 0 -2 2 v14 a2 2 0 0 0 2 2 h3 M19 7 h3 a2 2 0 0 1 2 2 v14 a2 2 0 0 1 -2 2 h-3"/><path d="M16 9 v14"/></svg></div>
<h3>Selection that knows what it is</h3>
<p>A selection points at a <em>thing</em>, not a stretch of characters — a spot between two letters, an XML attribute, a function argument, a table column, a whole chapter. It always knows where it is and what it means, so anything on screen can be selected and acted on.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linejoin="round"><rect x="8" y="6" width="16" height="22" rx="2"/><rect x="12" y="4" width="8" height="4.5" rx="1.5"/><circle cx="13" cy="18" r="2.3"/><circle cx="19" cy="18" r="2.3"/><path d="M15.3 18 h1.4" stroke-linecap="round"/></svg></div>
<h3>Paste the same thing — not a copy</h3>
<p>Beyond ordinary copy and paste, you can note a piece and paste it by <em>identity</em>: it then lives in many places at once as literally one and the same thing, not duplicates. Edit it anywhere and every place changes together — and it's reclaimed automatically once the last use is gone. Almost no editor lets you do this.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><rect x="5" y="5" width="9" height="9" rx="1.5"/><rect x="18" y="5" width="9" height="9" rx="1.5"/><rect x="5" y="18" width="9" height="9" rx="1.5"/><rect x="18" y="18" width="9" height="9" rx="1.5" stroke-dasharray="2 2.4"/><path d="M22.5 20.6 v4 M20.5 22.6 h4"/></svg></div>
<h3>Extend it by composition</h3>
<p>Add your own domain and its projections — in your own project, or contributed back — and the rest already knows how to nest, navigate, and edit it. No forking, no central registry, so it scales cleanly across many collaborators.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><rect x="5" y="5" width="22" height="22" rx="5"/><path d="M12.6 13 a3.4 3.4 0 1 1 4.8 3.1 c-1.2 .7 -1.4 1.4 -1.4 2.4"/><circle cx="16" cy="22.4" r="1" fill="currentColor" stroke="none"/></svg></div>
<h3>Help that fits the moment</h3>
<p>Ask what you can do right here and get a real answer: the actual operations available at the current selection, in the current context — not a static cheat-sheet you have to translate for yourself.</p>
</article>
</div>
</div>
</section>
<!-- AI -->
<section id="ai">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">AI integration</p>
<h2>Built for an AI collaborator — not bolted on.</h2>
<p>An assistant here isn't a plugin off to the side — it works the very same document you do. Because every action is an inspectable operation on shared structure, it sees the whole picture and changes it exactly the way a person would.</p>
</div>
<div class="spotlight" data-reveal>
<p class="eyebrow eyebrow--plain">The bigger idea</p>
<h3>Your workspace, arranged on demand</h3>
<p>Because the assistant can build documents and views as fluently as it edits them, the interface itself becomes something you assemble on the fly. A dashboard stops being a fixed layout and turns into a real desk: you and the assistant lay out exactly the notations, tools, and data the task in front of you needs — and rearrange them the moment the task changes.</p>
</div>
<div class="caps">
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6"><circle cx="14" cy="14" r="8"/><path d="M20 20 l6 6" stroke-linecap="round"/><path d="M14 11 v6 M11 14 h6" stroke-linecap="round"/></svg></div>
<h3>Introspection, built in</h3>
<p>The live document, the operations available right now, the projections in play, the editor's own interface — all of it is readable at runtime. The assistant discovers what it can do by inspection and self-documentation, rather than guessing.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><rect x="4" y="6" width="24" height="20" rx="3"/><path d="M9 13 l4 3 -4 3"/><path d="M16 20 h7"/></svg></div>
<h3>One tool: running code</h3>
<p>The assistant needs exactly one instrument — it runs code. Every change, whether to the data, the views, or the editor itself, is made by executing it, inside a sandbox that keeps the session safe.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M7 12 a9 9 0 0 1 16 -3 l2.5 2.5 M25.5 6 v5 h-5"/><path d="M25 20 a9 9 0 0 1 -16 3 l-2.5 -2.5 M6.5 26 v-5 h5"/></svg></div>
<h3>It changes what — and how</h3>
<p>The assistant edits the data and the projections that present it: swap a notation, add a sorted or filtered view, restructure a document. Manipulating documents and their views is native, not a bolt-on.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linejoin="round"><path d="M6 9 a2 2 0 0 1 2 -2 h16 a2 2 0 0 1 2 2 v9 a2 2 0 0 1 -2 2 h-9 l-5 4 v-4 h-2 a2 2 0 0 1 -2 -2 z"/><circle cx="12" cy="13.5" r="1.4" fill="currentColor" stroke="none"/><rect x="15.5" y="12" width="3.2" height="3.2" rx=".6"/><path d="M22.5 12.2 l1.6 1.3 -1.6 1.3" stroke-linecap="round"/></svg></div>
<h3>A conversation of anything</h3>
<p>The exchange with the assistant is itself a document, and it can hold whatever the two of you put there — a table, a formula, a diagram, a fragment of code — produced by the assistant or dropped in by you.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linejoin="round"><path d="M14 4 l2.2 6.8 6.8 2.2 -6.8 2.2 -2.2 6.8 -2.2 -6.8 -6.8 -2.2 6.8 -2.2 z"/><path d="M24 20 l1 3 3 1 -3 1 -1 3 -1 -3 -3 -1 3 -1 z"/></svg></div>
<h3>Intent, not keystrokes</h3>
<p>Typing text character by character is the exception now, not the rule. You say what you want and let the assistant carry it out — then step in and edit directly, anywhere, whenever you choose.</p>
</article>
<article class="cap" data-reveal>
<div class="cap__icon" aria-hidden="true"><svg viewBox="0 0 32 32" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><circle cx="9" cy="16" r="4"/><circle cx="23" cy="16" r="4"/><path d="M13.5 13.5 h5 l-2 -2 M18.5 18.5 h-5 l2 2"/></svg></div>
<h3>Symmetric by design</h3>
<p>There is no separate "AI mode." Anything you can do, the assistant can do; anything it can do, you can do. One shared vocabulary of operations drives both.</p>
</article>
</div>
</div>
</section>
<!-- SHOWCASE -->
<section id="showcase">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">See it in action</p>
<h2>One document: an AI assistant, a live simulation, math, tables, and charts.</h2>
<p>The current editor building an M/M/1/K queueing study end to end — prose, an OMNeT++ model,
a running simulation, and its results — composed live and driven by the built-in assistant.</p>
</div>
<figure class="showcase" data-reveal>
<video controls preload="none" playsinline poster="assets/mm1k-poster.jpg" width="1600" height="900">
<source src="assets/mm1k-demo.mp4" type="video/mp4">
Your browser can't play embedded video — <a href="assets/mm1k-demo.mp4">download the demo</a> instead.
</video>
<figcaption>the new, Julia-based ProjecturEd · an OMNeT++ study built entirely inside the editor</figcaption>
</figure>
</div>
</section>
<!-- EXAMPLES -->
<section id="examples">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">Examples</p>
<h2>A few things it can do — and how little it takes.</h2>
<p>Each one is a real document or projection, rendered by the editor itself. The code shown is the interesting part.</p>
</div>
<div class="examples-grid">
<article class="ex" data-reveal>
<figure class="ex__media">
<video autoplay muted loop playsinline preload="metadata" poster="assets/examples/rotating-poster.jpg" width="600" height="600">
<source src="assets/examples/rotating.mp4" type="video/mp4">
</video>
</figure>
<div class="ex__body">
<h3>A rotating vector</h3>
<p>Animation for free: each coordinate is a cell that reads the clock, so the whole scene redraws itself every frame.</p>
<pre class="ex__code"><code><span class="c"># each animated value is a cell that reads the editor's clock,</span>
<span class="c"># so the scene re-renders every frame</span>
dot = GraphicsCircle(
() -> cx + r*cos(angle(get_reactive_time(clock))),
() -> cy - r*sin(angle(get_reactive_time(clock))),
7, color_solarized_magenta)
GraphicsCanvas([background, ring, sin_chart, cos_chart, dot]; w, h)</code></pre>
</div>
</article>
<article class="ex" data-reveal>
<figure class="ex__media">
<img src="assets/examples/math-table.jpg" loading="lazy" decoding="async"
alt="A 3x3 table with column headers A B C and row headers 1 2 3; the first row holds numbers and the next rows hold rendered math formulas.">
</figure>
<div class="ex__body">
<h3>A table of live math</h3>
<p>Cells aren't just values — they can be formulas that recompute as you edit. A table domain and a math domain, composed.</p>
<pre class="ex__code"><code><span class="c"># a table widget whose cells can be live math, not just values</span>
WidgetTable(Point2D(40, 40),
[PrimitiveString("A"), PrimitiveString("B"), PrimitiveString("C")],
[PrimitiveString("1"), PrimitiveString("2"), PrimitiveString("3")],
[[PrimitiveNumber(10), PrimitiveNumber(20), PrimitiveNumber(30)],
<span class="c"># formulas, re-evaluated as you edit:</span>
[MathBinaryOperation(:+, MathVariable("A"), MathVariable("B")),
MathBinaryOperation(:*, PrimitiveNumber(2), MathVariable("B")),
MathBinaryOperation(:-, MathVariable("C"), PrimitiveNumber(5))]])</code></pre>
</div>
</article>
<article class="ex" data-reveal>
<figure class="ex__media">
<img src="assets/examples/sorting.jpg" loading="lazy" decoding="async"
alt="A short list of fruit strings shown sorted alphabetically.">
</figure>
<div class="ex__body">
<h3>Sort without touching the data</h3>
<p>A sorted view is one extra projection in the pipeline. Remove it and the original order is back — nothing was mutated.</p>
<pre class="ex__code"><code><span class="c"># a sorted view is just one more projection in the pipeline —</span>
<span class="c"># the underlying list is never reordered</span>
ChainingProjection(
SortingProjection(by = x -> x.value),
<span class="c"># … then render the collection as text …</span>
)</code></pre>
</div>
</article>
<article class="ex" data-reveal>
<figure class="ex__media">
<img src="assets/examples/object-form.jpg" loading="lazy" decoding="async"
alt="An editable settings form: a text field for a query and two checkboxes, generated from a struct.">
</figure>
<div class="ex__body">
<h3>Any object, as a form</h3>
<p>Point the reflective projection at a plain struct and get an editable form — text fields, checkboxes — with no UI code.</p>
<pre class="ex__code"><code><span class="c"># reflected into a form: the String becomes a text field,</span>
<span class="c"># each Bool a checkbox — no interface code written</span>
@document struct SearchSettings
query::String
case_insensitive::Bool
whole_word::Bool
end</code></pre>
</div>
</article>
<article class="ex" data-reveal>
<figure class="ex__media">
<img src="assets/examples/widget-sql-tool.jpg" loading="lazy" decoding="async"
alt="A mini SQL query tool: a split pane with a Query card holding the statement SELECT * FROM persons and an Execute button, beside a Results table of name and role rows (Ada/Lead, Bob/Engineer, Cleo/Ops).">
</figure>
<div class="ex__body">
<h3>A query tool, assembled</h3>
<p>Widgets and SQL in one document — the query and an Execute button on the left, its results table on the right. A split pane, a card, a button, a table, and a live SQL statement, composed together.</p>
<pre class="ex__code"><code><span class="c"># a query tool from widgets + SQL — one document, both domains</span>
WidgetSplitPane(:horizontal, [
WidgetCard(title = "Query", content = CellVector([
SqlSelectStatement("persons"), <span class="c"># SELECT * FROM persons</span>
WidgetButton(Point2D(0,0), Point2D(120,40), "Execute")])),
WidgetTitlePane("Results",
WidgetTable(["name", "role"], [],
[["Ada", "Lead"], ["Bob", "Engineer"], ["Cleo", "Ops"]]))])</code></pre>
</div>
</article>
<article class="ex" data-reveal>
<figure class="ex__media">
<img src="assets/examples/graph.jpg" loading="lazy" decoding="async"
alt="A graph of three node boxes connected by routed, labelled edges: a widget table (Name/Role, Ada/Lead), a JSON object (id 42, active true), and an XML node element — all placed automatically.">
</figure>
<div class="ex__body">
<h3>A graph that lays itself out</h3>
<p>Describe vertices and edges; it places the nodes and routes the connections for you. Each node here is a whole document in a different domain — a table, some JSON, an XML element.</p>
<pre class="ex__code"><code><span class="c"># nodes are whole documents — a table, some JSON, an XML element;</span>
<span class="c"># describe vertices and edges, the layout & routing are automatic</span>
v_table = GraphVertex(table) <span class="c"># table :: WidgetTable</span>
v_json = GraphVertex(json) <span class="c"># json :: JsonObject</span>
v_xml = GraphVertex(xml) <span class="c"># xml :: XmlElement</span>
GraphGraph(
[v_table, v_json, v_xml],
[GraphEdge(v_table, v_json; directed=true, label="uses"),
GraphEdge(v_json, v_xml; directed=true),
GraphEdge(v_table, v_xml; directed=false)])</code></pre>
</div>
</article>
<article class="ex ex--wide" data-reveal>
<figure class="ex__media">
<img src="assets/examples/mixed-julia-xml.jpg" loading="lazy" decoding="async"
alt="A Julia function named report whose body is an XML table; the rows are produced by a Julia for-loop that emits an XML tr with td cells holding the Julia field accesses row.region and row.revenue. Julia keywords, XML tags, and identifiers are syntax-coloured per domain.">
</figure>
<div class="ex__body">
<h3>One function, three domains</h3>
<p>A Julia function whose body is an XML table — and the rows are a Julia loop. One document nests Julia ⊃ XML ⊃ Julia, each level editable in place. Server-side templating, without the string-mashing.</p>
<pre class="ex__code"><code><span class="c"># Julia and XML document constructors, combined into one tree</span>
<span class="c"># (the editor renders it as the syntax shown alongside)</span>
JuliaFunction(JuliaIdentifier("report"), [JuliaIdentifier("rows")],
JuliaBlock([
XmlElement("table", [XmlAttribute("class", "report")], [
XmlElement("tr", [XmlElement("th", [XmlText("Region")]),
XmlElement("th", [XmlText("Revenue")])]),
JuliaFor([JuliaForIterator(JuliaIdentifier("row"),
JuliaIdentifier("rows"))],
JuliaBlock([
XmlElement("tr", [
XmlElement("td", [JuliaFieldAccess(JuliaIdentifier("row"),
JuliaIdentifier("region"))]),
XmlElement("td", [JuliaFieldAccess(JuliaIdentifier("row"),
JuliaIdentifier("revenue"))])])]))])]))</code></pre>
</div>
</article>
</div>
</div>
</section>
<!-- CATALOG -->
<section id="domains">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">Catalog</p>
<h2>Domains to edit — projections to view them.</h2>
<p>A document lives in a problem domain; a projection turns it into a notation. Both are open sets you extend — and because projections compose, any combination is fair game.</p>
</div>
<h3 class="cat-label" data-reveal>Domains</h3>
<div class="domains" data-reveal>
<span class="chip"><span class="dot"></span>JSON</span>
<span class="chip"><span class="dot"></span>XML</span>
<span class="chip"><span class="dot"></span>YAML</span>
<span class="chip"><span class="dot"></span>SQL</span>
<span class="chip"><span class="dot"></span>Source code · ASTs</span>
<span class="chip"><span class="dot"></span>Generic syntax <small>shared by JSON, XML, SQL & code</small></span>
<span class="chip"><span class="dot"></span>Math</span>
<span class="chip"><span class="dot"></span>Prose & Markdown</span>
<span class="chip"><span class="dot"></span>Styled text</span>
<span class="chip"><span class="dot"></span>Tables</span>
<span class="chip"><span class="dot"></span>Diagrams & graphs</span>
<span class="chip"><span class="dot"></span>Graphics</span>
<span class="chip"><span class="dot"></span>Icons</span>
<span class="chip"><span class="dot"></span>Images</span>
<span class="chip"><span class="dot"></span>Styles · fonts & colors</span>
<span class="chip"><span class="dot"></span>A rich widget set</span>
<span class="chip"><span class="dot"></span>Layouts, incl. constraint-based</span>
<span class="chip"><span class="dot"></span>Filesystem</span>
<span class="chip"><span class="dot"></span>Version history</span>
<span class="chip"><span class="dot"></span>AI conversation</span>
<span class="chip"><span class="dot"></span>Workbench & workspaces</span>
<span class="chip chip--soft"><span class="dot"></span>any object · reflected</span>
<span class="chip chip--soft"><span class="dot"></span>… and combinations of them</span>
</div>
<h3 class="cat-label" data-reveal>Transform any view</h3>
<div class="domains" data-reveal>
<span class="chip"><span class="dot"></span>Sorting a sequence</span>
<span class="chip"><span class="dot"></span>Filtering a sequence</span>
<span class="chip"><span class="dot"></span>Searching by a predicate</span>
<span class="chip"><span class="dot"></span>Reversing a sequence</span>
<span class="chip"><span class="dot"></span>Focusing to a smaller part</span>
</div>
<h3 class="cat-label" data-reveal>Compose & operate</h3>
<div class="domains" data-reveal>
<span class="chip"><span class="dot"></span>Chaining into pipelines</span>
<span class="chip"><span class="dot"></span>Dispatching by where it is</span>
<span class="chip"><span class="dot"></span>Recursion into parts</span>
<span class="chip"><span class="dot"></span>Clipboard</span>
</div>
<p class="cat-note" data-reveal>Stack them freely. Each notation <strong>builds on the ones beneath it</strong> — reusing their layout and their editing behaviour — so a sorted, filtered, or searched view stays fully editable, even in the middle of a nested search.</p>
</div>
</section>
<!-- STATUS -->
<section id="status">
<div class="wrap">
<div class="section-head" data-reveal>
<p class="eyebrow">Lineage & status</p>
<h2>A Common Lisp original — and a far more capable successor.</h2>
</div>
<div class="status__body">
<div data-reveal>
<p>
ProjecturEd began as an open-source editor written in Common Lisp — its source is public,
and you can still watch it in action. The current editor is its successor: rebuilt from
the ground up, far more capable, and in active development.
</p>
<p>
The successor is, in its own way, a proof of the thesis: roughly seventy thousand lines
built entirely through disciplined, AI-assisted development and automated self-testing —
not one of them written by hand.
</p>
<p>
It runs today across native, terminal, and browser. If projectional editing is something
you think about too — as a user, a builder, or a fellow traveller — get in touch.
</p>
</div>
<div class="status__links" data-reveal>
<a class="status__link" href="mailto:projectured@gmail.com">
<span>Get in touch<small>Say hello · collaborate</small></span>
<span>→</span>
</a>
<a class="status__link" href="https://www.youtube.com/watch?v=s05SlmZ7ZPc" target="_blank" rel="noopener">
<span>Watch the original<small>The Common Lisp version, on YouTube</small></span>
<span>↗</span>
</a>
<a class="status__link" href="https://github.com/projectured/projectured-lisp" target="_blank" rel="noopener">
<span>Original source<small>Common Lisp · open source · archived</small></span>
<span>↗</span>
</a>
</div>
</div>
</div>
</section>
</main>
<footer>
<div class="wrap">
<div class="titleblock">
<div class="tb"><div class="k">Project</div><div class="v">ProjecturEd</div></div>
<div class="tb"><div class="k">Discipline</div><div class="v">AI-native projectional editor</div></div>
<div class="tb tb--live"><div class="k">Status</div><div class="v"><span class="live-dot"></span>In active development</div></div>
<div class="tb"><div class="k">Contact</div><div class="v"><a href="mailto:projectured@gmail.com">projectured@gmail.com</a></div></div>
<div class="tb"><div class="k">Original</div><div class="v"><a href="https://github.com/projectured/projectured-lisp" target="_blank" rel="noopener">projectured​/projectured-lisp</a></div></div>
<div class="tb"><div class="k">Sheet</div><div class="v">01 · landing</div></div>
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<div class="footnote">
<span>© 2026 ProjecturEd</span>
<span>Edit the structure, not the text.</span>
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