Hi HN, I built CodePulse to explore how far a "no-framework" approach could go for a functional online IDE. It’s a monorepo with a Vanilla JS frontend and a Fastify backend on Render. It supports 8+ languages via Glot.io. While it obviously can't beat local latency, the goal was a zero-setup, high-performance web interface for quick prototyping and testing. I'd love to hear your thoughts on the architecture!