Show HN: Lasm – Write formally verified webapps in Lean for Node/serverless/edge
Summary
This article presents Lasm, a Lean 4 based toolchain that compiles Lean programs to WebAssembly for Node, serverless, edge, WASI, and browser targets. It highlights formal verification capabilities, a flagship Conduit app with 117 proved theorems, and a broad cross platform deployment model with CI pipelines. It also documents limitations and licensing, underscoring the potential for verifiable web apps in production.