I actually use StackBlitz very often to rapidely proof-of-concept some ideas. I really love what they offer.

Although, to me, it still feel like a place for code samples and examples. Limitations like native bindings, memory usage (especially on iOS) and the fact that some wasm equivalent package (like esbuild) is slower in the browser than remotely with a latency, makes StackBlitz a good tool, but not a workplace (imo).

Their implementation of the wasm nodejs is still an insane breakthrough