Root & Nested Configurations in Biome
From the Biome cheat sheet · Monorepos · verified Aug 2026
Root & Nested Configurations
Extend the root config from packages with the Biome v2 microsyntax.
json
{
"$schema": "https://biomejs.dev/schemas/2.5.6/schema.json",
"linter": {
"rules": {
"preset": "recommended"
}
},
"formatter": {
"lineWidth": 100
}
}🟢 Place the first config at the monorepo root
💡 extends // inherits the discovered root configuration
📌 Nested independent configs must set root to false
🔍 Run Biome from the root or an individual package
monorepoworkspacesextends
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