r/WebAssembly

I posted this days ago but the 'automated admins took it down saying was generated by AI' as the formulation was maybe too academic. Trying now with other words.
Short storry: I wanted to generated python glue code for webgpu based on webgpu header. After exploring libclang and generating correct results, I wanted something more generic, more 'built in into C++'. At the beginning I thought will be easy with constexpr compile time tricks, but turned out the compile time 'runtime' is very restrictive. And I solved the challenges with ycetl. https://github.com/zokrezyl/ycetl

This is not a toy project, it is work of couple of months, fight with windmills of compile time runtime. If you see issues that can make it production ready, please share.

Hey crew!

So I've been building userland.run, a RUST/WASM RISC-V 64-bit VM that runs entirely in your browser. It ships JS bridges for the terminal, an early app catalog (BusyBox apps, plus the full Node.js v25 pipeline), and all of it runs client-side. Zero server. If you know WebContainers, it's a cousin, except I went and emulated an actual RISC-V userland underneath because apparently I hate sleeping.

Where this is headed: a catalog of pure WASM apps you drive from a terminal OR hand off to an agent, with the inference engine also running in-tab. So the LLM lives in your browser too.

The dream: agentic dev and terminal work on YOUR machine. No cloud. No servers. No usage bill quietly ticking up while you sleep. Full privacy, your code never leaves the tab.

Now the honest part. I've been staring at this so long I genuinely can't tell anymore if it's a real thing people want or just a beautiful cathedral I built inside my own skull. So, WASM crew, I'm asking you directly: does this make sense, or have I been nerd-sniped by my own project?

Roast me. I can take it.

Cheers, Dietz