What's great
WebVM is great! It's very useful to have a Linux environment instantly ready whenever you need it! Whether for quick testing, demo running, or just random experimentation.
The tech behind it is also really cool. The fact that they can just run Binaries in the browser client side feels like a potential game changer in what's possible on the web.
What needs improvement
The WebVM 2.0 Alpine image with the GUI is really cool to see, and it’s impressive that it works at all in the browser. Performance can feel a bit limited at times though. Improving responsiveness would make the experience even smoother.
vs Alternatives
There are other cloud VM platforms, but most of them are essentially a frontend connected to a VM running on their servers. They usually require accounts, setup, and sometimes payment.
How fast does the x86-to-WASM JIT feel for typical workflows?
For typical workflows like compiling small projects, running CLI tools, or testing binaries, performance feels surprisingly responsive given everything runs in the browser. It’s not the same as a native VM on a powerful machine, but for experimentation, demos, and lightweight development it’s more than usable.
How reliable is Linux syscall emulation for real projects?
From what I've tried, running common Linux tools and small development workflows compatibility has been solid. Standard utilities and binaries behave as expected.
How secure is the sandbox for running untrusted binaries?
Super safe! Since the whole environment is sandboxed. Running untrusted binaries is a great use case for it. :)