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Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Shark

Achievements

Achievement: Pair ExtraordinaireAchievement: Pull Shark

Organizations

@Verisav

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kevinbouti/README.md

Kévin Boutillier

Fullstack builder · semantic web · AI agents · products in production

Co-founder @Verisav & Daremeet · Bordeaux, France
Website · LinkedIn · ORCID · Product Hunt

ORCID Schema.org LOV W3ID Springer Zenodo

I ship end-to-end products (web, iOS, Android, APIs) and publish machine-readable standards (RDF/OWL, Schema.org, W3C VC) — research that informs production, production that constrains research.

What I actually build

Layer In practice
Product SaaS B2B2C · social app · native mobile · monorepo · CI/CD → production
Backend / data Node · TypeScript · PostgreSQL · Supabase · REST · GraphQL · auth · i18n
Frontend React · Next.js · design systems · maps · analytics · SEO / Schema.org
Mobile Swift (iOS) · Kotlin (Android) · App Store / Play Store delivery
AI systems LLM agents · MCP · bots métier · automation · reproducible eval benchmarks
Semantic web RDF/OWL · JSON-LD · SHACL · W3C VC · GS1 Digital Link · EU DPP / ESPR
Also Java · Python · benchmarks · tooling · LaTeX research pipelines

Tech stack

Languages

TypeScript JavaScript Python Java Swift Kotlin SQL

Web & APIs

React Next.js Node.js GraphQL REST PostgreSQL Supabase

AI & automation

LLM Agents MCP Python eval

Semantic web & standards

RDF JSON-LD SHACL Schema.org W3C VC GS1 DPP

Delivery

Git GitHub Actions Vercel Tests npm

Products in production

Verisav

B2B2C after-sales · warranty · EU Digital Product Passport

  • Fullstack SaaS: Next.js · TypeScript · Supabase · Vercel
  • Native iOS (Swift) & Android (Kotlin)
  • Open RDF/OWL vocabularies (DPP · RMA · WTY) — LOV · W3ID · Zenodo
  • npm libs: GS1 validation · W3C Verifiable Credentials · GraphQL over RDF
  • Schema.org / ESPR alignment for machine-readable product data

Daremeet

Real-world meetups via challenges & map

  • Product fullstack: map · challenges · auth · i18n · analytics
  • Web + mobile delivery pipeline
  • AI agents & bots (challenge-agent, daremeetbot) for métier automation
  • Continuous shipping with agentic tooling (MCP · Cursor)

Open source & standards

Project Contribution Status
Schema.org PR #4663 — Product & SoftwareApplication examples Merged
react.dev PR #8342 — props reference formatting Open
Next.js PR #91055 — Contributing docs wording Open
w3id.org Persistent URI redirects for Verisav namespaces Community
W3C Schema.org CG Member — DPP / ESPR proposals Active

npm: @verisav/gs1-dpp-utils · @verisav/dpp-verifiable-credentials · @verisav/graphql-rdf-vocabularies

Research & reproducible artifacts

Repository What it proves
hn-llm-authority-audit Deterministic benchmark: when LLMs cite authority IDs, are they valid & entity-consistent?
NDL-authority-dossier-public Authority-data interoperability dossier (NDL Bib ID 034656012)
Verisav/vocabularies Open RDF/OWL for EU DPP — ESPR-aligned, SHACL-gated
Verisav/gs1-dpp-utils GTIN / GLN / GS1 Digital Link validation (zero deps, production-tested)
Verisav/dpp-verifiable-credentials Issue & verify W3C VCs for Digital Product Passports
Verisav/graphql-rdf-vocabularies GraphQL layer over RDF/OWL vocabularies
amai-jacobian-regularization Reproducibility code — Jacobian-regularized classification (AMAI)

Peer-reviewed: Boutillier, K. (2026). Digital Product Passport for Circular Economy… — Circular Economy and Sustainability (Springer). DOI 10.1007/s43615-026-01000-3 · HAL

Semantic namespaces: ns.verisav.fr · doi.org/10.5281/zenodo.18016853

@dataset{boutillier2026verisav,
  author       = {Boutillier, K{\'e}vin},
  title        = {Verisav Semantic Vocabularies: DPP, RMA, WTY},
  year         = {2026},
  publisher    = {Zenodo},
  doi          = {10.5281/zenodo.18016853},
  url          = {https://doi.org/10.5281/zenodo.18016853}
}

How I work with AI

Not demos — production systems:

  • Design agents & MCP tools that ship features, bots, and scripts into real products
  • Keep architecture ownership: tests, CI, reviews, rollback
  • Evaluate LLM claims with reproducible protocols (not anecdotes) — see hn-llm-authority-audit
  • Stack core: JS/TS · also Java & Python when the job needs it

Activity

Contact

Pinned repos = research & production libraries — not upstream forks.
Open to collaboration on interop, DPP, agentic product engineering.

Pinned Loading

  1. hn-llm-authority-audit hn-llm-authority-audit Public

    Reproducible benchmark for LLM authority-reference reliability — deterministic metrics, error taxonomy, CSV outputs

    Python

  2. schemaorg/schemaorg schemaorg/schemaorg Public

    Schema.org - schemas and supporting software

    HTML 6.2k 950

  3. Verisav/dpp-verifiable-credentials Verisav/dpp-verifiable-credentials Public

    Issue and verify W3C Verifiable Credentials for DPP. Used at Verisav. EU Business Wallet–ready.

    TypeScript

  4. Verisav/graphql-rdf-vocabularies Verisav/graphql-rdf-vocabularies Public

    Expose RDF/OWL vocabularies via GraphQL. Used at Verisav for DPP, RMA, WTY.

    TypeScript

  5. Verisav/gs1-dpp-utils Verisav/gs1-dpp-utils Public

    Validate GTIN, GLN & GS1 Digital Link for EU DPP. Used in production at Verisav.

    TypeScript

  6. Verisav/vocabularies Verisav/vocabularies Public

    Open RDF/OWL vocabularies for EU Digital Product Passports (ESPR 2024/1781), RMA & warranties — LOV · W3ID · SHACL

    HTML