.eslintrc.js

module.exports = {
  parser: '@typescript-eslint/parser',
  parserOptions: {
    project: 'tsconfig.json',
    tsconfigRootDir: __dirname,
    sourceType: 'module',
  },
  plugins: ['@typescript-eslint', 'prettier', 'import'],
  extends: [
    'eslint:recommended',
    'plugin:@typescript-eslint/recommended',
    'plugin:prettier/recommended', 'plugin:import/recommended',
    'plugin:import/typescript',
  ],
  root: true,
  env: {
    node: true,
    jest: true,
  },
  ignorePatterns: ['.eslintrc.js'],
  settings: {
    'import/resolver': {
      typescript: {
        project: './tsconfig.json',
      },
    },
  },
  rules: {
    'prettier/prettier': [
      'error',
      {
        semi: true,
        singleQuote: false,
        trailingComma: 'all',
      },
    ],
    quotes: ["error", "double"],
    'sort-imports': [
      'error',
      {
        ignoreCase: false,
        ignoreDeclarationSort: true, // don"t want to sort import lines, use eslint-plugin-import instead
        ignoreMemberSort: false,
        memberSyntaxSortOrder: ['none', 'all', 'multiple', 'single'],
        allowSeparatedGroups: true,
      },
    ],
    'import/no-unresolved': 'error',
    'import/order': [
      'error',
      {
        groups: [
          'builtin', // Built-in imports (come from NodeJS native) go first
          'external', // <- External imports
          'internal', // <- Absolute imports
          ['sibling', 'parent'], // <- Relative imports, the sibling and parent types they can be mingled together
          'index', // <- index imports
          'unknown', // <- unknown
        ],
        'newlines-between': 'always',
        alphabetize: {
          /* sort in ascending order. Options: ["ignore", "asc", "desc"] */
          order: 'asc',
          /* ignore case. Options: [true, false] */
          caseInsensitive: true,
        },
      },
    ],
    '@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',
    /** disable eslint rule see: https://typescript-eslint.io/rules/no-unused-vars/#how-to-use  */
    "no-unused-vars": "off",
    "@typescript-eslint/no-unused-vars": ["error", { "varsIgnorePattern": "^_", "argsIgnorePattern": "^_" }],
  },
};

.prettierrc.js

/**
 * @type {import("prettier").Config}
 */
const config = {
  printWidth: 120,
  singleQuote: false,
  trailingComma: 'all',
  semi: true,
  endOfLine: 'lf',
  jsxSingleQuote: false,
  tabWidth: 2,
  arrowParens: 'always',
};

module.exports = config;

package.json

{
  "scripts": {
    "format": "prettier --write \"src/**/*.ts\" \"test/**/*.ts\"",
    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\"",
    "lint:fix": "npm run lint -- --fix",
  },
  "devDependencies": {
    "@typescript-eslint/eslint-plugin": "^7.2.0",
    "@typescript-eslint/parser": "^7.2.0",
    "eslint": "^8.57.0",
    "eslint-config-prettier": "^9.1.0",
    "eslint-import-resolver-typescript": "^3.6.1",
    "eslint-plugin-import": "^2.29.1",
    "eslint-plugin-prettier": "^5.1.3",
    "jest": "^29.7.0",
    "prettier": "^3.2.5",
    "source-map-support": "^0.5.21",
    "supertest": "^6.3.4",
    "ts-jest": "^29.1.2",
    "ts-loader": "^9.5.1",
    "ts-node": "^10.9.2",
    "tsconfig-paths": "^4.2.0"
  }
}

settings.json

{
    "editor.formatOnSave": false,
    "eslint.validate": [
        "typescript"
    ],
    "editor.codeActionsOnSave": {
        "source.fixAll": "always"
    },
    "cSpell.words": [
        "Accessorial",
        "Fluker",
        "nestjs"
    ]
}

tsconfig.json

{
  "compilerOptions": {
    "module": "commonjs",
    "declaration": true,
    "removeComments": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true,
    "target": "ES2021",
    "sourceMap": true,
    "outDir": "./dist",
    "baseUrl": "./",
    "incremental": true,
    "skipLibCheck": true,
    "strictNullChecks": false,
    "noImplicitAny": false,
    "strictBindCallApply": false,
    "forceConsistentCasingInFileNames": false,
    "noFallthroughCasesInSwitch": false
  },
  "exclude": [
    "tmp",
    "dist"
  ]
}