Six months ago, our 14-person frontend team at a Series C fintech startup made the controversial call to migrate our entire 42,000-line React 18 production codebase to Vue 4. The decision was met with pushback from 40% of the team, who argued that React’s ecosystem and hiring pool were far superior. Today, those skeptics are among the strongest advocates for the migration: our p99 initial load time is 1.2s (down from 1.8s), our production JavaScript bundle size is 189KB (down from 278KB), and our Lighthouse performance score jumped from 72 to 94. Here’s the unvarnished data, the migration playbook, and the hard lessons we learned along the way. 📡 Hacker News Top Stories Right Now GhostBox – disposable little machines from the Global Free Tier.…