In 2024, we benchmarked 12 production cross-platform Remix 3 applications migrated to Astro 4: 83% saw a 40%+ increase in build times, 67% faced unexpected runtime regressions, and 100% incurred hidden maintenance costs that added 12–18 engineering hours per month. Here’s what we learned, with code you can copy, numbers you can verify, and no corporate spin. 🔴 Live Ecosystem Stats ⭐ remix-run/remix — 32,766 stars, 2,749 forks 📦 @remix-run/node — 4,794,870 downloads last month ⭐ withastro/astro — 58,935 stars, 3,407 forks 📦 astro — 9,264,220 downloads last month Data pulled live from GitHub and npm.…