Project References

The shared-library and shared-react-library configurations have composite set to true. This is required for TypeScript project references to work in a monorepo.

Why Project References?

Project references provide IDE go-to-definition without having to emit the module output. In practice, this means that if you alter code in a shared package, the consuming app or library will pick up the changes without requiring a watch task on the shared package to trigger a rebuild on every change.

Without project references, the consuming code would only see the dist output of the shared package.

Without Project References

If you prefer to work without project references, you should set your bundler to also output declaration maps, but not all bundlers support this.