.eslintrc.json

{
  "extends": [
    "plugin:react/recommended",
    "plugin:@typescript-eslint/recommended",
    "prettier",
    "plugin:prettier/recommended",
    "plugin:jsx-a11y/recommended",
    "plugin:json/recommended"
  ],
  "plugins": ["@typescript-eslint"],
  "parser": "@typescript-eslint/parser",
  "parserOptions": {
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "env": {
    "browser": true,
    "jest": true
  },
  "settings": {
    "react": {
      "version": "detect"
    }
  },
  "rules": {
    "@typescript-eslint/naming-convention": [
      "error",
      {
        "selector": "interface",
        "format": ["PascalCase"],
        "prefix": ["I"]
      },
      {
        "selector": "variableLike",
        "format": ["camelCase", "UPPER_CASE", "PascalCase"],
        "leadingUnderscore": "allow"
      }
    ],
    "no-tabs": "error",
    "react/prop-types": "off",
    "@typescript-eslint/no-unused-vars": "error"
  },
  "overrides": [
    {
      "files": [
        "src/utils/shared/*.?(js|ts)",
        "src/gatsby/**/*.js",
        "scripts/**/*.js",
        "config/**/*.js",
        "src/server/**/*.js",
        "plugins/**/*.js",
        "gatsby-*.js",
        "postcss.config.js"
      ],
      "rules": {
        "@typescript-eslint/no-var-requires": "off",
        "@typescript-eslint/explicit-function-return-type": "off"
      }
    }
  ]
}