Do you have a real world use case for this sort of thing? I'm digging the ability to do these kinds of satanic rites, but I'm not really sure that there's a practical use today other than pushing the bounds of what's possible..
I think the most compelling use case is running legacy code in the browser (and in applications like Atom and Visual Studio Code) - like our Latex example.
Another good use case are command line tools like graphviz. Someone wrote a wrapper around an emscriptenized Graphviz that looks great, but Browsix should lower the bar for using great existing tools like these from JavaScript.