Biome Linter & Formatter Expert (2026 Edition)

English | Bahasa Indonesia

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English

Orchestration & Integration

• monorepo-architect: Biome configuration in monorepo workspaces.
• ci-cd-devops-architect: Biome in CI/CD pipelines.
• scalability-clean-code: Code quality standards enforcement.
• typescript-expert: TypeScript-specific lint rules.

Description

Expert guide for Biome v2, the Rust-based unified linter and formatter replacing ESLint + Prettier. Covers migration from ESLint/Prettier, custom rule configuration, CI integration, monorepo setup, and editor integration. Includes performance comparison and best practices for 2026 JavaScript/TypeScript projects.

Trigger Conditions

• Setting up code linting and formatting for new projects.
• Migrating from ESLint + Prettier to Biome.
• Configuring Biome in monorepo or CI/CD pipelines.
• Resolving linting or formatting configuration issues.

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Why Biome over ESLint + Prettier?

Aspect	Biome v2	ESLint 9 + Prettier 3
Speed	10-100x faster (Rust)	Baseline (Node.js)
Config Files	1 (biome.json)	2-3 files
Formatter + Linter	✅ Unified	Separate tools
Import Sorting	✅ Built-in	Plugin required
CSS/JSON Support	✅ Built-in	Plugin required

# Install and init
npm install --save-dev @biomejs/biome
npx biome init

# Migrate from ESLint/Prettier
npx biome migrate eslint --write
npx biome migrate prettier --write

// biome.json
{
  "$schema": "https://biomejs.dev/schemas/2.0.0/schema.json",
  "organizeImports": { "enabled": true },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": true,
      "complexity": { "noExcessiveCognitiveComplexity": "warn" },
      "suspicious": { "noExplicitAny": "error" }
    }
  },
  "formatter": {
    "enabled": true,
    "indentStyle": "space",
    "indentWidth": 2,
    "lineWidth": 100
  }
}

Orchestration & Integration

• monorepo-architect, ci-cd-devops-architect, scalability-clean-code

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Bahasa Indonesia

Deskripsi

Panduan ahli Biome v2, linter dan formatter berbasis Rust yang menggantikan ESLint + Prettier. Mencakup migrasi, konfigurasi rule, integrasi CI, dan setup monorepo.

Kondisi Pemicu

• Menyiapkan linting dan formatting kode untuk proyek baru.
• Migrasi dari ESLint + Prettier ke Biome.
• Mengkonfigurasi Biome di monorepo atau pipeline CI/CD.