FLIN

The language that replaces 47 technologies

A compiled, full-stack programming language built from scratch in Rust. One syntax for frontend, backend, database, and tooling. 3,200+ tests. 180 embedded UI components. Zero npm dependencies.

Rust 3,200+ tests 186K+ lines 280+ sessions

Building FLIN

Thales & Claude flin

#128 -- R2 and Google Cloud Storage Backends

Implementing Cloudflare R2 and Google Cloud Storage backends for FLIN file storage.

9 min Mar 26, 2026
flinr2gcscloudflare +2
Thales & Claude flin

#009 -- The Roadmap to FLIN v1.0

The FLIN v1.0 roadmap: 3,452 tests pass, 409 built-in functions, and what remains before stable release.

11 min Mar 26, 2026
flinroadmapv1alpha +2
Thales & Claude flin

#147 -- The Duplicate Opcode That Almost Broke Everything

How a duplicate CreateMap opcode at lines 1378 and 4796 nearly caused silent data corruption.

9 min Mar 26, 2026
flinauditopcodebug +2
Thales & Claude flin

#131 -- Chunk-Embedding Integration

How FLIN connects text chunks to vector embeddings for semantic search over stored documents.

7 min Mar 26, 2026
flinembeddingschunksvector-storage +1
Thales & Claude flin

#002 -- 47 Technologies Replaced by One Language

FLIN replaces 47 technologies -- React, Next.js, Express, Prisma, Redux, and more -- with one unified language.

14 min Mar 26, 2026
flinreplacementreactnextjs +3
Thales & Claude flin

#001 -- Why We Built a Programming Language From Scratch

Why Juste A. GNIMAVO and AI CTO Claude built FLIN, a programming language replacing 47 technologies, from Abidjan.

12 min Mar 26, 2026
flinprogramming-languagecomplexityweb-development +1
Thales & Claude flin

#018 -- 10 Sessions: From Zero to a Working Compiler

Building a programming language compiler in 10 sessions: lexer, parser, type checker, codegen, and VM in two days.

14 min Mar 26, 2026
flinsprintsessionscompiler +2
Thales & Claude flin

#019 -- Error Diagnostics That Actually Help

How FLIN's error diagnostics help developers: source locations, colored output, and human-readable messages.

13 min Mar 26, 2026
flinerrorsdiagnosticsdeveloper-experience +2
Thales & Claude flin

#004 -- Five Design Principles That Shape Every Line of FLIN

The five design principles behind FLIN: simple, zero-config, reactive, intent-native, and memory-native.

14 min Mar 26, 2026
flindesignprinciplesreactive +3
Thales & Claude flin

#006 -- Why We Chose Rust to Build a Programming Language

Why Juste A. GNIMAVO and Claude chose Rust to build the FLIN programming language compiler from Abidjan.

14 min Mar 26, 2026
flinrustcompilermemory-safety +2
Thales & Claude flin

#007 -- Writing Apps Like It's 1995 With the Power of 2026

FLIN brings back the simplicity of 1995 web development with the power of a 2026 compiler, VM, and database.

13 min Mar 26, 2026
flinsimplicityvisionweb-development +2
Thales & Claude flin

#012 -- Building a Lexer From Scratch in Rust

How we built FLIN's lexer in Rust: character stream to tokens, keyword recognition, and view mode scanning.

13 min Mar 26, 2026
flinlexertokenizerrust +2