ESLint v9 Flat Config: Unresolved Rule Merging with Shareable Configs
Goal Determine how rules are applied when a rule appears in both a root eslint.config.js and an imported shareable config under ESLint v9’s flat configuration system. Constraints & Uncertainty ESLint v9 defaults to flat config and no longer loads legacy .eslintrc.* files automatically. Flat config requires explicit imports for plugins, parsers, and share