Use WebAssembly to run the code on the browser

[Vipul-Cariappa]

Use WebAssembly to run code on the browser. When a user submits the answer, the server can execute the code to verify it. This will reduce the load on the server to execute the user's code when they try to solve a challenge; that will happen multiple times.

This requires a lot of work. I presently don't know how to do it.

We only support Python programming language at the moment and wasm is a target for Python 3.11. We can try using it.

Important links:

• Doc on how to compile Python to wasm. [I could not get it to compile without any errors on my machine (Using Debian WSL Window 11)] https://pythondev.readthedocs.io/wasm.html
• YouTube video on complying Python to wasm. https://www.youtube.com/watch?v=B52cSnNOrFM
• pyodide existing wasm offering. Can be used to run Python on the web. https://github.com/pyodide/pyodide
• RustPython is a Python interpreter written using Rust. Porting Rust to wasm should be easiest. Also, you can find a working demo here of using RustPython to run arbitrary user defined code on the browser. https://github.com/RustPython/RustPython

Preferably our implementation should allow us to attach a debugger of some kind and also provide Graphical debugging capability.