Hi, I just want to note that in 2019, I tried to build a Pharo VM to WebAssembly using Emscripten. It was not really working but I was able to, at least, build and run the VM. [image: EmPharo.png] The code is here: https://github.com/pavel-krivanek/EmPharo Maybe someone will be interested enough to try to push it :-) The main issues I found: - the VM seems to use the long jumps and in very ugly way - it specifies assembler labels and then it jumps to them - heartbeat - atomic operations (probably not so critical) Cheers, -- Pavel