Hi all- CEO of StackBlitz/author of this blog post here. Happy to answer any questions! (Also, thanks for posting this bpierre!)
Could you point us to an introduction to how operating system concepts get mapped to browser concepts?
It sounds like each native binary gets compiled to a WebAssembly binary, but how do they communicate? How are the network and file system implemented? Are parts of the file system persistent? How does a system call work?
Great questions- we have some additional technical info in our core WG repo: https://github.com/stackblitz/webcontainer-core
We also did an hour long podcast a few months back that goes into pretty deep detail: https://www.youtube.com/watch?v=5F9qH-ea5Qk