Thank you. We are working hard on getting LFortran to beta quality, making great progress. It will lift up all of Fortran once we can compile most codes.

Our LPython demo runs the LPython compiler in the browser itself, compiles your Python code and runs the result, using WASM:

dev.lpython.org

I am glad you like it! If you have time, you can help us develop it more. :)

Excellent, thanks! I started using mystmd, for now on just a simple document to see how it goes. I think this will work! I like that you parse it to AST (saved as JSON), this is the key. If everything else fails, I can always write my own backend, so things are decoupled.

Thanks! There is also Jupyter book: jupyterbook.org/en/stable/co..., so I am a little confused which tool I should be using.I have written this book in Sphinx and ReST: www.theoretical-physics.com/dev/index.html, but would like to use MyST. Do you recommend using mystmd, myst-parser or jupyter book?

Can MyST be used with Sphinx, or do I need to port a Sphinx-based website to use the `myst` command line tool?

I was surprised that Rust is 2015, but indeed Wikipedia says so. It also says it was first started in 2006 internally. It also says "The first public release, Rust 0.1 was released in January 2012".