No Big-Bang Rewrites: Running Two Frontends Without Losing Your Mind

The Rewrite That Never Was We needed a modern frontend. The Blade + Bootstrap + jQuery stack was showing its age. The design team had a new UI/UX vision. The natural instinct was: rewrite the frontend in React. But big-bang rewrites fail. Joel Spolsky wrote about this in 2000. Fred Brooks explained it before that. The pattern is always the same: you spend months building The New Thing, the old thing keeps getting patches, the two diverge, and you end up with two broken systems instead of one working one. So we didn't rewrite. We migrated. Page by page. Feature by feature. And we set up the architecture so both frontends could coexist without developers losing their minds. Two Paths, One Codebase The application runs two frontend architectures simultaneously: Path Server Layer UI Layer Status Legacy Web controllers Blade views Bug fixes only SPA API controllers React + TypeScript All new features The Legacy path serves ~228 Blade views across ~59 web controllers. It works. Users depend