.eslintrc.js

module.exports = {
  env: {
    browser: true,
    es2021: true,
    node: true,
  },
  extends: [
    'plugin:react/recommended',
    'airbnb',
    'plugin:react-hooks/recommended', // React hooks rules
    'plugin:jsx-a11y/recommended', // Accessibility rules
  ],
  parser: '@typescript-eslint/parser',
  parserOptions: {
    ecmaFeatures: {
      jsx: true,
    },
    ecmaVersion: 12,
    sourceType: 'module',
  },
  plugins: [
    'react',
    '@typescript-eslint',
  ],
  rules: {
    'react/jsx-filename-extension': [1, { extensions: ['.jsx', '.tsx'] }],
    // No need to import React when using Next.js
    'react/react-in-jsx-scope': 'off',

    // This rule is not compatible with Next.js's <Link /> components
    'jsx-a11y/anchor-is-valid': 'off',

    // Why would you want unused vars?
    '@typescript-eslint/no-unused-vars': ['error'],

    // I suggest this setting for requiring return types on functions only where useful
    '@typescript-eslint/explicit-function-return-type': [
      'warn',
      {
        allowExpressions: true,
        allowConciseArrowFunctionExpressionsStartingWithVoid: true,
      },
    ],
    'import/extensions': [
      'error',
      'never',
    ],
    'import/no-unresolved': 0,
    'no-shadow': 'off',
    '@typescript-eslint/no-shadow': ['error'],
  },
};