Lovable's own 42M-visitor site now runs on TanStack Start, not Next.js
Lovable migrated lovable.dev — 42M monthly visitors, ~400 routes, 910K+ lines of code — from Next.js on Vercel to the TanStack Start framework, served exactly like any user app on their own platform. The move sharpens their dogfooding feedback loop, pushes single-app scaling, and feeds knowledge back into their builder agent.