biome.json

{
  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
  "organizeImports": {
    "enabled": true
  },
  "formatter": {
    "lineWidth": 100,
    "ignore": ["node_modules", ".svelte-kit"]
  },
  "javascript": {
    "formatter": {
      "bracketSameLine": true,
      "quoteStyle": "double"
    }
  },
  "linter": {
    "ignore": ["node_modules", ".svelte-kit"],
    "rules": {
      "recommended": true,
      "a11y": {
        "recommended": true
      },
      "correctness": {
        "recommended": true,
        "noNewSymbol": "warn",
        "noUnusedImports": "error",
        "noUndeclaredVariables": "error",
        "noUnusedVariables": "error"
      },
      "performance": {
        "recommended": true
      },
      "security": {
        "recommended": true
      },
      "suspicious": {
        "recommended": true,
        "noApproximativeNumericConstant": "error",
        "noConsoleLog": "warn",
        "noMisrefactoredShorthandAssign": "error",
        "noEmptyBlockStatements": "error",
        "useAwait": "warn"
      },
      "style": {
        "recommended": true,
        "noImplicitBoolean": "error",
        "noNegationElse": "warn",
        "noShoutyConstants": "error",
        "useBlockStatements": "error",
        "useCollapsedElseIf": "warn",
        "useFragmentSyntax": "warn",
        "useForOf": "warn",
        "useShorthandAssign": "warn",
        "useSingleCaseStatement": "error"
      },
      "complexity": {
        "recommended": true,
        "noVoid": "warn",
        "useSimplifiedLogicExpression": "warn",
        "noUselessTernary": "warn"
      },
      "nursery": {
        "recommended": true,
        "noDuplicateElseIf": "error",
        "useImportRestrictions": "warn",
        "useSortedClasses": {
          "level": "warn",
          "options": {}
        }
      }
    }
  }
}