.eslintrc.json

{
  "env": {
    "es6": true,
    "node": true
  },
  "extends": ["eslint:recommended", "plugin:prettier/recommended"],
  "overrides": [
    {
      "extends": [
        "plugin:@typescript-eslint/recommended",
        "plugin:@typescript-eslint/recommended-requiring-type-checking"
      ],
      "files": ["**/*.ts"],
      "parserOptions": {
        "project": "tsconfig.json"
      }
    },
    {
      "env": {
        "jest": true
      },
      "files": ["test/**/*.ts"],
      "parserOptions": {
        "project": "test/tsconfig.json"
      },
      "rules": {
        "@typescript-eslint/no-unsafe-assignment": "off",
        "@typescript-eslint/no-unsafe-call": "off",
        "@typescript-eslint/no-unsafe-member-access": "off",
        "@typescript-eslint/restrict-template-expressions": "off"
      }
    }
  ],
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module"
  },
  "root": true
}