arch-tsdown-monorepo

arch-tsdown-monorepo is a pnpm monorepo starter for TypeScript libraries (based on hairyf/starter-monorepo ). Each package uses tsdown for building. It provides shared tooling (ESLint, Vitest, TypeScript), pnpm catalogs for versions, workspace dependencies , and optional npm Trusted Publisher for CI-based releases. The skill is based on hairyf/starter-monorepo, generated at 2026-02-02. Recommended practices: Use pnpm catalogs for devDependency versions; reference with catalog:cli , catalog:testing , etc. Use workspace: for inter-package dependencies; publish once manually, then use npm Trusted Publisher for CI releases. Run build/typecheck/test from root with pnpm -r run ... and a single Vitest config with projects (root + packages/). Core References Topic Description Reference Overview Monorepo purpose, structure, when to use core-overview Workspace pnpm workspace, catalogs, workspace: deps core-workspace Packages Package layout, exports, inter-package deps core-packages Package Exports Dual exports (dev vs publish), main/module/types, files, sideEffects core-package-exports tsdown (per package) entry, dts, exports, publint core-tsdown-per-package Scripts Root and package scripts — build, dev, typecheck, test, release core-scripts Testing Vitest projects — root + packages/ core-testing Tooling ESLint, TypeScript, .gitignore, .vscode core-tooling CI GitHub Actions — lint, typecheck, test matrix core-ci Release npm Trusted Publisher, bumpp, release workflow core-release Git Hooks simple-git-hooks, lint-staged, pre-commit core-git-hooks Features Topic Description Reference Exports Snapshot Per-package export snapshot tests (vitest-package-exports, runIf(IS_READY)) features-exports-snapshot Add Package Step-by-step adding a new workspace package features-add-package Best Practices Topic Description Reference Monorepo Catalogs, workspace deps, release, build order best-practices-monorepo