Python
This probably isn't even linked to, how did you find this??
2024/02/02 So maybe a month ago, while making a folder clean-up script I was struck with a neat and clean way to make a gemtext parser, and then a couple of days ago it hit me that I should make a Brainfuck interpreter, and managed to make it. It's a pretty easy thing to make, but it was something that I'd tried to do a few years ago when I was far less good at Python and failed. (I also tried making a gemtext parser for my Inkplate 10 [which I really need to get back into messing with, still would love to make it into a little laptop format] and didn't manage to finish that)
Well, I just realised that I've implemented an interpreter. I've been interested in esolangs for a while so I could maybe start work on one myself (after learning how to make a lexer). And like, Python is not the best (or good) language for this, but whatever.
I've got quite a few sketches for esolangs, but the one that could perhaps be useful is a language/editor made to be written on a featurephone using its keypad. That being said, it's a lot more focussed on the editor than the language. Another one is a a scripting language for making presentations, inspired by Adelie, the output being a .odp file (or some other presentation file). I later learned this was, like, a thing already, but would still be interesting to make.