.eslintrc.json

{
  "root": true,
  "parser": "@typescript-eslint/parser",
  "plugins": [
    "@typescript-eslint"
  ],
  "extends": [
    "plugin:@typescript-eslint/eslint-recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier"
  ],
  "rules": {
    // common
    "no-return-await": "error",
    "no-unreachable-loop": "error",
    "no-promise-executor-return": "off",
    "no-unsafe-optional-chaining": "error",
    "no-useless-backreference": "error",
    "require-atomic-updates": "error",
    "require-await": "error",
    "no-await-in-loop": "off",
    "spaced-comment": "error",
    "no-unused-vars": "off",
    "curly": "error",
    "semi": "error",
    "camelcase": "off",
    // TypeScript
    "@typescript-eslint/explicit-function-return-type": "off",
    "@typescript-eslint/explicit-member-accessibility": "off",
    "@typescript-eslint/consistent-type-imports": "off",
    "@typescript-eslint/no-use-before-define": "off",
    "@typescript-eslint/no-shadow": "off",
    "@typescript-eslint/prefer-optional-chain": "error",
    "@typescript-eslint/no-unused-vars": "error",
    "@typescript-eslint/no-loss-of-precision": "error",
    "@typescript-eslint/no-empty-function": "error",
    "@typescript-eslint/no-empty-interface": "off",
    "@typescript-eslint/no-inferrable-types": "error",
    "@typescript-eslint/no-non-null-asserted-optional-chain": "error",
    "@typescript-eslint/no-non-null-assertion": "error",
    "@typescript-eslint/explicit-module-boundary-types": "off",
    "@typescript-eslint/no-var-requires": "error",
    "@typescript-eslint/no-explicit-any": "off",
    "@typescript-eslint/ban-types": "error",
    "@typescript-eslint/no-namespace": "off",
    "@typescript-eslint/ban-ts-comment": "off"
  },
  "overrides": [
    {
      "files": [
        "*.ts",
        "*.tsx"
      ],
      "rules": {
        "@typescript-eslint/explicit-function-return-type": [
          "error",
          {
            "allowConciseArrowFunctionExpressionsStartingWithVoid": true,
            "allowDirectConstAssertionInArrowFunctions": true
          }
        ],
        "@typescript-eslint/explicit-member-accessibility": [
          "error",
          {
            "accessibility": "explicit"
          }
        ]
      }
    }
  ]
}