@dnbhq/biome-config

Shared Biome configuration for @davidsneighbour's projects.

• Installation
• Usage
• Available config
  • Strict baseline
• Design notes
• Release
• Notes

Installation

npm install --save-dev @dnbhq/biome-config @biomejs/biome

Upgrading Biome

After upgrading @biomejs/biome to a new version, run Biome's built-in migration command to update your config automatically:

npx @biomejs/biome migrate --write

This rewrites any deprecated or renamed keys in biome.json and reports anything that needs manual attention. Run it once per Biome upgrade — no upper-bound pin on the peer dependency is needed because the migration script is the recovery path.

Usage

Create or update biome.json in the consuming project:

{
  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
  "extends": ["./node_modules/@dnbhq/biome-config/config.json"]
}

Available config

Strict baseline

The package exports one shared Biome configuration:

{
  "extends": ["./node_modules/@dnbhq/biome-config/config.json"]
}

It enables formatting, import organisation, VCS integration, and a strict rule set for performance, complexity, correctness, and suspicious-code checks.

Design notes

The configuration data was migrated from packages/biome-config in davidsneighbour/configurations.

The shared config intentionally keeps project-local decisions in the consuming project. Consumers can override values after the shared config in their local biome.json.

Biome applies configs from the extends list first, then applies local options from the consuming biome.json, so local project settings remain the most specific settings.

Release

Dry run:

npm run release:dry

Release:

npm run release

Releases are handled by release-it and @release-it/conventional-changelog.

Commit messages should follow Conventional Commits.

Publishing is handled by the Publish package GitHub Actions workflow when a v* tag is pushed.

Notes

• The consuming project should install @biomejs/biome directly so editor integrations, CLI usage, and lockfiles remain project-local.
• The package includes only config.json, README.md, CHANGELOG.md, and LICENSE in the npm package.
• Use npm run test before releasing. The test command currently runs biome check against this repository.