.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: 'tsconfig.json',
    tsconfigRootDir: __dirname,
    sourceType: 'module',
  },
  settings: {
    'import/parsers': { '@typescript-eslint/parser': ['.ts'] },
  },
  plugins: ['import', '@typescript-eslint/eslint-plugin'],
  extends: ['plugin:@typescript-eslint/recommended', 'plugin:prettier/recommended'],
  root: true,
  env: {
    node: true,
    jest: true,
  },
  ignorePatterns: ['.eslintrc.js'],
  rules: {
    'import/order': [
      'error',
      {
        groups: [
          'builtin',
          'external',
          'internal',
          ['sibling', 'parent', 'index'],
          'type',
          'unknown',
        ],
        alphabetize: {
          order: 'asc',
          caseInsensitive: true,
        },
        'newlines-between': 'always',
      },
    ],
    '@typescript-eslint/interface-name-prefix': 'off',
    '@typescript-eslint/explicit-function-return-type': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-unused-vars': 'off',
  },
  overrides: [
    {
      files: ['**/*.ts'],
      parserOptions: {
        project: ['./tsconfig.json'],
      },
    },
    {
      files: ['jest.config.js'],
      rules: {
        '@typescript-eslint/no-var-requires': 'off',
      },
    },
  ],
};