Simplify Your Day As Developer

Hook: If your monorepo spends CI minutes (and developer patience) waiting on TypeScript builds, you’re not alone. Large workspaces with dozens or hundreds of packages can balloon TypeScript build time — but with the right combination of tsc project references , incremental compilation, and smart caching, you can cut build times by orders of magnitude. This guide gives a practical, low-risk migration path, copy-paste configs, CI cache recipes, and troubleshooting tips so you can speed up TypeScript compilation now. Why TypeScript build times explode in monorepos — common causes and symptoms Common root causes When working with a monorepo, TypeScript build time often increases because of: Naive independent builds: running tsc for every package without dependency awareness rebuilds shared code repeatedly. Full program rebuilds: without incremental mode, any change can trigger a full re-typecheck of large program graphs. Large declaration outputs: generating .d.ts and sou...