.eslintrc.js

module.exports = {
  env: {
    es2020: true,
    node: true,
    jest: true,
  },
  extends: ['plugin:@typescript-eslint/recommended'],
  parser: '@typescript-eslint/parser',
  plugins: ['@typescript-eslint', 'import'],
  rules: {
    'comma-dangle': [
      'error',
      {
        arrays: 'always-multiline',
        objects: 'always-multiline',
        imports: 'always-multiline',
        exports: 'always-multiline',
        functions: 'never',
      },
    ],
    indent: 'off', // Prettier
    quotes: 'off', // Prettier
    'no-undef': 'error',
    'prefer-const': 'error',
    semi: ['error', 'always'],
    'no-console': ['error', { allow: ['error'] }],
    '@typescript-eslint/ban-ts-comment': 'off',
    '@typescript-eslint/explicit-module-boundary-types': 'off',
    '@typescript-eslint/no-var-requires': 'off',

    '@typescript-eslint/no-unused-vars': [
      'error',
      { argsIgnorePattern: '^_', varsIgnorePattern: '^_' },
    ],

    // TODO: fixme and switch to `error`
    '@typescript-eslint/no-explicit-any': 'off',
    '@typescript-eslint/no-non-null-assertion': 'off',
  },
  settings: {
    'import/resolver': {
      node: {
        extensions: ['.js', '.jsx', '.ts', '.tsx', '.mjs'],
      },
    },
  },
};