typescript-monorepo

To set up a TypeScript monorepo, create a Bun or npm workspace with packages like web, api, db, and shared, extend each package tsconfig from a central base, and define path aliases to enable cross-package type sharing.

The best way to share a base tsconfig is to create a central tsconfig.base.json and have per-package tsconfig.json files extend it, allowing package-specific overrides for JSX, Node types, and lib settings.

Yes, this TypeScript monorepo setup works with both Bun and npm workspaces, configuring shared base TS config and cross-package imports seamlessly across your web, api, db, and shared packages.

You configure per-package tsconfig overrides by extending the shared base config and specifying environment settings like JSX for web contexts or Node types and lib for server contexts within each package.

You need path aliases in a TypeScript monorepo to enable clean cross-package imports and ensure proper type exports to consumers, resulting in maintainable code and reused shared types across packages.