TypeScript Build (tsb)

Extends the TypeScript compiler (tsc) with a configurable file copy step, allowing you to copy non-TypeScript assets (CSS, JSON, etc.) from source to output directories after a successful tsc build. Current stable version is 3.1.0. It operates in two modes: TSC mode (runs tsc with given arguments and then copies files) or Copy-only mode (only copies files based on tsbconfig.json). Key differentiator: it automatically follows TypeScript project references, looking for tsbconfig.json next to each referenced tsconfig.json. Requires Node >=14.16 and a peer dependency on typescript itself.