@alldev/eslint-config

Shared ESLint flat config for Alldev projects: TypeScript (typescript-eslint recommended), Airbnb (flat), Stylistic, JSON, and CSS.

Requirements

• Node.js 18+ (or whatever your apps already use).
• ESLint 9 (eslint@^9).
• TypeScript as a dev dependency (typescript satisfies the typescript-eslint toolchain, even if the repo is mostly JavaScript).

Install

In the project root (app, package, or worker):

pnpm add -D eslint typescript @alldev/eslint-config

npm install --save-dev eslint typescript @alldev/eslint-config

yarn add -D eslint typescript @alldev/eslint-config

eslint-flat-config-airbnb already pulls in plugins such as React, React Hooks, import, and jsx-a11y; you do not need to duplicate those in each repo unless you want extra plugins locally.

Use in a project

Add eslint.config.mjs (or eslint.config.js if the project is ESM-ready) at the repository root of that project—same level as its package.json. Do not copy rule lists from this package; import the preset and only add local overrides when needed.

Default (use shared rules as-is)

// eslint.config.mjs
import eslintconfig from "@alldev/eslint-config";

export default eslintconfig;

The package already calls defineConfig, so the default export is ready for ESLint.

With local overrides

// eslint.config.mjs
import eslintconfig from "@alldev/eslint-config";

export default [
  ...eslintconfig,
  {
    files: ["**/*.ts", "**/*.tsx"],
    rules: {
      // project-specific only
    },
  },
];

If your default export is a single config object/array from defineConfig, spreading works the same as with any flat-config array.

Scripts

Add something like:

{
  "scripts": {
    "lint": "eslint .",
    "lint:fix": "eslint . --fix"
  }
}

Point ESLint at the right roots if you use monorepos (eslint packages/foo or eslint . from each package root with its own eslint.config.mjs).

What this config covers

• Ignores: node_modules, dist, build, .next, .wrangler, coverage.
• JS/TS/JSX/TSX: typescript-eslint recommended + Airbnb flat + shared globals (browser + node) + Stylistic and import/React-related tweaks (see index.js in this repo).
• JSON / JSONC / JSON5: @eslint/json recommended.
• CSS: @eslint/css recommended.

Updating rules

Change rules in index.js in this package, bump version in package.json, publish, then bump @alldev/eslint-config in each consumer and reinstall.

License

MIT