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.
Building FLIN
#045 -- Advanced Type Features: The Complete Picture
A retrospective on FLIN's complete type system -- how inference, union types, generics, traits, tagged unions, pattern matching, and control flow features form a coherent whole.
#165 -- The Theme Toggle Bug
When dark mode toggling caused a cascade of style recalculations and flickering.
#034 -- Traits and Interfaces
How we designed FLIN's trait system -- trait declarations, impl blocks, trait bounds on generics, and the Rust implementation that ties polymorphism to type safety.
#084 -- Charts and Data Visualization Components
How FlinUI's 25 chart components render data visualizations with pure FLIN markup -- from line charts to treemaps, all declarative, reactive, and zero-dependency.
#154 -- Production Panic Calls: Tracking and Elimination
How we tracked down and eliminated 5 production panic calls found during the audit.
#128 -- R2 and Google Cloud Storage Backends
Implementing Cloudflare R2 and Google Cloud Storage backends for FLIN file storage.
#147 -- The Duplicate Opcode That Almost Broke Everything
How a duplicate CreateMap opcode at lines 1378 and 4796 nearly caused silent data corruption.
#156 -- The CreateEntity Opcode That Went Missing
A critical opcode vanished from the VM dispatch table. This is the story of how we found it.
#202 -- The Admin Console From Scratch
Building a complete admin console from scratch in the final sessions.
#003 -- Naming a Language After an Elephant: The Fongbe Origin of FLIN
FLIN's name comes from Fongbe (Benin): 'E flin nu' means 'It remembers things.' The elephant never forgets.
#103 -- WebSocket Support Built Into the Language
How FLIN provides native WebSocket support through ws route blocks -- real-time communication without Socket.IO, without ws, without a separate server.
#131 -- Chunk-Embedding Integration
How FLIN connects text chunks to vector embeddings for semantic search over stored documents.