I have implemented yet another forth by myself. It works a little bit different and it is not intended to be a true copy of the original idea.

Since the post says you can discover Forth, here's my part:

https://github.com/loscoala/goforth

The main difference is that in this Forth variant, the source text is completely translated into bytecode and there is no runtime in the sense of classic Forth. This makes it easy to translate the bytecode to C.

I use my own Forth to generate C code with it, which I then embed in other software.

There is a really nice open source project out there that allows you to train your hearing and your sightreading, but it's written in the authors own language which in turn compiles to JavaScript and the headache to set up their toolchain is such that I haven't bothered fixing any of the bugs that I'm aware of (and there are plenty).

https://sightreading.training/

https://github.com/leafo/sightreading.training

It's written in a language called 'Moonscript':

https://github.com/leafo/moonscript

Which compiles to Lua. Which compiles to JS.

Madness. Nice madness, but still, it stopped me from being a contributor.