SonarQube
For a monorepo, you have two choices: one SonarQube project for the whole repo, or separate projects per service. Separate projects give you independent quality gates and metrics per service. One project is simpler but mixes metrics for unrelated services. Key Takeaways One project per service is usually the right
Monorepo
Every monorepo eventually develops the same antipattern: each package has its own createUser helper, its own database seeder, its own mock server setup. They start identical and drift apart. The schema changes, three of the eight copies get updated, and you spend a debugging session figuring out why tests pass
Monorepo
This guide walks through the complete setup of a TypeScript monorepo using Moon.build from scratch — pnpm workspaces, shared tsconfig, Vitest per package, Moon task orchestration, and a GitHub Actions CI pipeline with remote caching. Estimated setup time: 45 minutes. Key Takeaways 1. Moon requires explicit project registration and task
Monorepo
Combining Moon.build with Vitest gives you fast, isolated test runs per package with smart caching, plus the option of a unified workspace-level test runner for coverage merging. Moon handles the orchestration; Vitest handles the execution. Key Takeaways 1. Vitest's workspace feature lets you define per-package
Monorepo
Moon, Nx, and Turborepo all solve the "run only what changed" problem in monorepos, but they take different approaches. Moon prioritizes language agnosticism and explicit configuration; Nx leans on its plugin ecosystem and IDE integration; Turborepo optimizes for minimal configuration and zero-friction adoption. Your choice depends on
Monorepo
Moonrepo's CI performance comes from three compounding optimizations: content-addressed local caching, parallel task execution across dependency levels, and remote caching shared across all runners and branches. Together, they can reduce CI times by 70–90% in large monorepos. Key Takeaways 1. Moon's cache key is
Monorepo
Moon.build (Moonrepo) is a task runner and monorepo management tool that tracks project dependencies, detects which projects are affected by a change, and runs only the tests that matter — drastically cutting CI time in large codebases. Key Takeaways 1. Moon uses a dependency graph to determine which projects are
Testing
Bun workspaces let you run tests across every package in a monorepo with a single command. Cross-package imports resolve through the workspace protocol, TypeScript paths work without a build step, and bun test --filter targets packages by name pattern — making the monorepo test loop almost as fast as a
Monorepo
Turborepo's core promise is simple: run tasks in the order they need to run, skip work you've already done, and do as much in parallel as possible.
Monorepo
pnpm workspaces give you a fast, disk-efficient monorepo foundation, but the testing story requires deliberate setup.
Monorepo
As a monorepo grows, test code starts to duplicate. Every package writes its own createUser() factory, defines its own API mock handlers, and copies the same Jest setup file. A change to the User type means updating factories in five packages. A new API endpoint means updating mocks scattered across
Monorepo
Running your full test suite on every commit stops being practical the moment your monorepo grows beyond a handful of packages.