Why I Started Building a Local-First Browser IDE

Modern development environments are more powerful than ever, but they’ve also become increasingly heavy, latency-dependent, and complex over time. After spending years working with browser-based tools, I became obsessed with one question:

Why do so many coding environments still feel slow despite modern hardware and browsers becoming incredibly powerful?

That question eventually led me to start building NitroIDE — a local-first browser IDE focused on responsiveness, lightweight workflows, and reducing the “client-server lag” feeling common in many modern web-based tools.

The project is still evolving, but exploring technologies like IndexedDB, service workers, WebAssembly, WebGPU, and browser-native runtimes has completely changed the way I think about development environments.

I don’t think browser IDEs are here to replace every desktop workflow overnight, but I do think modern browsers are becoming much more capable than many developers realize.

I’d genuinely love to hear:
What makes an editor or IDE feel “fast” to you?