biome.json

{
  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
  "files": {
    "ignore": [
      ".expo/",
      ".husky/",
      "android/",
      "babel.config.js",
      "build/",
      "dist/",
      "expo-env.d.ts",
      "ios/",
      "metro.config.js",
      "node_modules/",
      "templates/"
    ]
  },
  "formatter": {
    "enabled": true,
    "formatWithErrors": false,
    "indentStyle": "space",
    "indentWidth": 2,
    "lineEnding": "lf",
    "lineWidth": 80,
    "attributePosition": "auto"
  },
  "organizeImports": { "enabled": true },
  "linter": {
    "enabled": true,
    "rules": {
      "recommended": false,
      "complexity": { "noWith": "warn" },
      "correctness": {
        "noEmptyCharacterClassInRegex": "warn",
        "noEmptyPattern": "warn",
        "noUndeclaredVariables": "error",
        "noUnreachable": "warn",
        "noUnusedLabels": "warn",
        "noUnusedVariables": "warn",
        "useExhaustiveDependencies": "warn",
        "useHookAtTopLevel": "error",
        "useIsNan": "error"
      },
      "security": { "noDangerouslySetInnerHtmlWithChildren": "warn" },
      "style": { "useBlockStatements": "off" },
      "suspicious": {
        "noDoubleEquals": "warn",
        "noDuplicateCase": "error",
        "noDuplicateClassMembers": "error",
        "noDuplicateJsxProps": "error",
        "noDuplicateObjectKeys": "error",
        "noDuplicateParameters": "error",
        "noRedeclare": "warn",
        "noUnsafeNegation": "warn",
        "useValidTypeof": "error"
      }
    }
  },
  "javascript": {
    "formatter": {
      "jsxQuoteStyle": "double",
      "quoteProperties": "asNeeded",
      "trailingCommas": "all",
      "semicolons": "always",
      "arrowParentheses": "always",
      "bracketSpacing": true,
      "bracketSameLine": false,
      "quoteStyle": "double",
      "attributePosition": "auto"
    },
    "globals": ["console", "__DEV__", "shared-node-browser"],
    "jsxRuntime": "transparent"
  },
  "overrides": [
    { "include": ["*.web.*"] },
    { "include": ["*.d.ts"], "linter": { "rules": {} } },
    { "include": ["*.js", "*.jsx"] },
    {
      "include": ["*.ts", "*.tsx", "*.d.ts"],
      "linter": {
        "rules": {
          "complexity": {
            "noBannedTypes": "error",
            "noUselessConstructor": "warn"
          },
          "correctness": {
            "noUndeclaredVariables": "off",
            "noUnusedVariables": "warn"
          },
          "style": {
            "useConsistentArrayType": {
              "level": "warn",
              "options": { "syntax": "shorthand" }
            }
          },
          "suspicious": {
            "noDuplicateClassMembers": "error",
            "noExtraNonNullAssertion": "warn",
            "noRedeclare": "warn"
          }
        }
      }
    }
  ]
}