eslint.config.js

const { fixupPluginRules } = require('@eslint/compat')
const { FlatCompat } = require('@eslint/eslintrc')
const js = require('@eslint/js')
const typescriptEslintEslintPlugin = require('@typescript-eslint/eslint-plugin')
const tsParser = require('@typescript-eslint/parser')
const _import = require('eslint-plugin-import')
const globals = require('globals')

const compat = new FlatCompat({
  baseDirectory: __dirname,
  recommendedConfig: js.configs.recommended,
  allConfig: js.configs.all,
})

module.exports = [
  {
    ignores: ['**/eslint.config.js'],
  },
  ...compat.extends('plugin:@typescript-eslint/recommended', 'plugin:prettier/recommended'),
  {
    plugins: {
      '@typescript-eslint': typescriptEslintEslintPlugin,
      import: fixupPluginRules(_import),
    },

    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.jest,
      },

      parser: tsParser,
      ecmaVersion: 5,
      sourceType: 'module',

      parserOptions: {
        project: 'tsconfig.json',
      },
    },

    rules: {
      '@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',

      'import/order': [
        'error',
        {
          alphabetize: {
            order: 'asc',
          },

          groups: [
            ['builtin', 'external'],
            ['internal', 'parent', 'sibling', 'index'],
          ],
          'newlines-between': 'never',
        },
      ],
    },
  },
]