.eslintrc.json

{
  "root": true,
  "parserOptions": {
    "ecmaVersion": 2020,
    "sourceType": "module",
    "ecmaFeatures": {
      "jsx": true
    }
  },
  "env": {
    "browser": true,
    "node": true,
    "es6": true
  },
  "settings": {
    "react": {
      "version": "detect"
    },
    "import/resolver": {
      "node": {
        "extensions": [".ts", ".tsx"]
      }
    }
  },
  "plugins": ["simple-import-sort", "@typescript-eslint"],
  "extends": [
    "next/core-web-vitals",
    "plugin:@typescript-eslint/recommended",
    "plugin:jsx-a11y/recommended",
    "plugin:react-hooks/recommended",
    "plugin:prettier/recommended"
  ],
  "rules": {
    // increase the severity of rules so they are auto-fixable
    "simple-import-sort/imports": "error",
    "simple-import-sort/exports": "error",

    "@typescript-eslint/no-unused-vars": "error",
    "@typescript-eslint/no-explicit-any": "error",

    "react/react-in-jsx-scope": "off",
    "react/jsx-filename-extension": [
      1,
      {
        "extensions": [".ts", ".tsx", ".js", ".jsx"]
      }
    ],
    "react/jsx-props-no-spreading": "off",
    "import/extensions": [
      "error",
      "ignorePackages",
      {
        "js": "never",
        "jsx": "never",
        "ts": "never",
        "tsx": "never"
      }
    ],
    "jsx-a11y/anchor-is-valid": [
      "error",
      {
        "no-html-link-for-pages": true
      }
    ],
    "no-nested-ternary": "off",
    "import/prefer-default-export": "off"
  },
  "overrides": [
    // override "simple-import-sort" config
    {
      "files": ["*.js", "*.jsx", "*.ts", "*.tsx"],
      "rules": {
        "simple-import-sort/imports": [
          "error",
          {
            "groups": [
              // Packages `react` related packages come first.
              ["^react", "^@?\\w"],
              // Internal packages.
              ["^(@|components)(/.*|$)"],
              // Side effect imports.
              ["^\\u0000"],
              // Parent imports. Put `..` last.
              ["^\\.\\.(?!/?$)", "^\\.\\./?$"],
              // Other relative imports. Put same-folder imports and `.` last.
              ["^\\./(?=.*/)(?!/?$)", "^\\.(?!/?$)", "^\\./?$"],
              // Style imports.
              ["^.+\\.?(css)$"]
            ]
          }
        ]
      }
    }
  ]
}