.eslintrc.js

module.exports = {
  env: {
    es2021: true,
    node: true,
  },
  extends: [
    "eslint:recommended",
    "plugin:@typescript-eslint/recommended",
    "plugin:import/typescript",
    "plugin:import/recommended",
    "prettier",
  ],
  parser: "@typescript-eslint/parser",
  parserOptions: {
    ecmaVersion: 12,
    sourceType: "module",
  },
  plugins: ["@typescript-eslint"],
  rules: {
    // default exports suck and only make things more confusing
    "import/prefer-default-export": "off",

    // import without extension for all typescript files,
    // but with explicit extension for everything else
    "import/extensions": [
      "warn", // or error?
      "always", // "never" | "always" | "ignorePackages",
      {
        //   // ignorePackages: false,
        //   pattern: {
        //     ts: "never",
        //   },
      },
    ],
    "import/group-exports": "error",
  },
};