Sounds very interesting. Can Firefox be used too? I am on mobile right now and it only shows the "It looks like CheerpX could not start" in Firefox for Android.
Firefox does unfortunately not currently support WebAssembly tail calls. Sadly, they also seem not be making any progress on this feature, even if it's supposed to be in the "Implementation Phase" of the WebAssembly standardization process.
This is literally running the Ubuntu x86 packages for python in the browser, by dynamically recompiling binary code to WebAssembly.
This demo is indeed just a Python REPL, but the technology is fully generic. On top of this you can make _any_ binary run. We are actually working on using this to preserve Flash content by running the official Adobe plugin safely in the sandbox.
CheerpX is actually fully dynamic. You don't even need to "compile" things manually before. You can just feed binaries to the JS API and the program will run.
Our roadmap is to release our Flash solution in 2020, and we are in the process of finalizing the pricing of that. We have not yet defined how other uses (like REPLs) will work. If you have an interesting use case for our tech, drop us a line info@leaningtech.com
This demo is indeed just a Python REPL, but the technology is fully generic. On top of this you can make _any_ binary run. We are actually working on using this to preserve Flash content by running the official Adobe plugin safely in the sandbox.