I used vx32 as a technical demo before workers came to be. It was super useful. However, vx32 itself is very much not production ready. There are issues with i

I used vx32 as a technical demo before workers came to be. It was super useful. However, vx32 itself is very much not production ready. There are issues with instruction decoding, floating point, and interrupt handling. (it uses itimer as a schedululer tick for preemption). I think playing with vx32 is a great experience, taught me way more than all my systems programming classes at uni. Vx32 was a predecessor to NaCL, and shared the same problems. Nowadays WASI seems to have taken this niche.