.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: 'tsconfig.json',
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint/eslint-plugin', 'simple-import-sort'],
  extends: [
    'plugin:@typescript-eslint/recommended',
    'plugin:prettier/recommended',
  ],
  root: true,
  env: {
    node: true,
    jest: true,
    es2020: true,
  },
  ignorePatterns: ['.eslintrc.js'],
  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',
    '@typescript-eslint/strict-boolean-expressions': [
      'error',
      {
        allowString: true,
        allowNumber: true,
        allowNullableObject: true,
        allowNullableBoolean: true,
        allowNullableString: true,
        allowNullableNumber: false,
        allowNullableEnum: true,
        allowAny: true,
        allowRuleToRunWithoutStrictNullChecksIKnowWhatIAmDoing: true,
      },
    ],
    eqeqeq: ['error', 'always', { null: 'ignore' }],
    'simple-import-sort/imports': 'error',
    'simple-import-sort/exports': 'error',
  },
};