Comment by pbecotte

It can run "anything" ... so long as someone has set up that project to correctly compile to a wasm target. "docker build" lets you build a package out of any software, without having to know much about it. "setting up a compiler for a new project, given the source code and maybe a separate toolchain for some other target that works", is a much more involved task.

There is no world where people are just grabbing an existing app and saying "hey, I'm gonna drop this into my wasm runtime real quick"