Monorepos

Ultracite is designed to work out of the box with monorepos. Here's how to use it with Turborepo.

Configuration

When initializing Ultracite, it will create the appropriate config file(s) in the root of your repository based on your chosen linter. This configuration applies to your entire monorepo.

my-turborepo/
├── apps/
├── packages/
├── turbo.json
└── biome.jsonc (or eslint.config.mjs, .oxlintrc.json, etc.)

Adding scripts

Because Ultracite's underlying tools are fast (especially the Rust-based Biome and Oxlint), you can run a single root script rather than creating separate scripts in each package.

Add the check and fix scripts to your root package.json:

{
  "scripts": {
    "check": "ultracite check",
    "fix": "ultracite fix"
  }
}

Optionally, add these as root tasks in your turbo.json:

{
  "tasks": {
    "//#check": {},
    "//#fix": {
      "cache": false
    }
  }
}

You can now run turbo run check and turbo run fix from anywhere in your monorepo.