@vortiquo/eslint-config

Modern ESLint v9 flat configurations with TypeScript, React, and Node.js support.

Features

• ⚡ ESLint v9 - Modern flat config format
• 🔒 Strict TypeScript - Uses strictTypeChecked preset
• 📦 Ready-to-use presets - Next.js, React, Node.js, NestJS
• 🎨 Prettier compatible - No formatting conflicts
• 📝 Import sorting - Auto-fixable with simple-import-sort
• 🏎️ Turbo support - Monorepo cache awareness

Installation

npm install -D @vortiquo/eslint-config eslint typescript
# or
pnpm add -D @vortiquo/eslint-config eslint typescript
# or
yarn add -D @vortiquo/eslint-config eslint typescript

Available Configs

| Config | Use Case | | ------------------ | ----------------------------------------- | | nextjs | Next.js applications | | server | Backend APIs (Fastify, Express, Hono) | | nestjs | NestJS applications | | react | React applications | | react-library | React/UI component libraries (TypeScript) | | react-library-js | React/UI component libraries (JavaScript) | | node-library | Shared Node.js packages (TypeScript) | | node-library-js | Shared Node.js packages (JavaScript) |

Usage

Create an eslint.config.js in your project:

Next.js

import { nextjs } from '@vortiquo/eslint-config/nextjs';

export default [
  ...nextjs,
  {
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
      },
    },
  },
];

Backend API (Fastify/Express/Hono)

import { server } from '@vortiquo/eslint-config/server';

export default [
  ...server,
  {
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
      },
    },
  },
];

NestJS

import { nestjs } from '@vortiquo/eslint-config/nestjs';

export default [
  ...nestjs,
  {
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
      },
    },
  },
];

React Component Library

import { reactLibrary } from '@vortiquo/eslint-config/react-library';

export default [
  ...reactLibrary,
  {
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
      },
    },
  },
];

Node.js Library

import { nodeLibrary } from '@vortiquo/eslint-config/node-library';

export default [
  ...nodeLibrary,
  {
    languageOptions: {
      parserOptions: {
        project: './tsconfig.json',
      },
    },
  },
];

JavaScript Projects (No TypeScript)

For projects without TypeScript, use the -js variants:

// Node.js library (JavaScript)
import { nodeLibraryJs } from '@vortiquo/eslint-config/node-library-js';

export default [...nodeLibraryJs];

// React library (JavaScript)
import { reactLibraryJs } from '@vortiquo/eslint-config/react-library-js';

export default [...reactLibraryJs];

Extending Configs

All configs are arrays that can be spread and extended:

import { nextjs } from '@vortiquo/eslint-config/nextjs';

export default [
  ...nextjs,
  {
    rules: {
      'no-console': 'off',
    },
  },
  {
    ignores: ['generated/**'],
  },
];

What's Included

Base Rules

• Prettier integration (formatting handled by Prettier)
• Turbo plugin (monorepo cache awareness)
• Import sorting (auto-fixable)
• Best practices (curly, eqeqeq, prefer-const)

TypeScript Rules

• Strict type checking (strictTypeChecked)
• Consistent type imports/exports
• No explicit any
• Promise handling (no-floating-promises)

React Rules

• React recommended + JSX runtime
• React Hooks rules
• Self-closing components
• Prop sorting

Next.js Rules

• Core Web Vitals
• Image optimization
• App Router support

Config Hierarchy

base (JS rules, Prettier, Turbo)
├── node-library-js (JS Node.js packages)
├── react-library-js (JS React libraries)
└── base-typescript (TS strict rules)
    ├── react (React + Hooks)
    │   ├── react-library (stricter)
    │   └── nextjs (Next.js specific)
    ├── server (Node.js APIs)
    │   └── nestjs (decorators)
    └── node-library (Node.js packages)

License

MIT © Vortiquo