Tunapunk is a user on niu.moe. You can follow them or interact with them if you have an account anywhere in the fediverse.
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I'll go with #SuperColider for #MAL since nobody convinced me to pick something else. Why, yes, it's an audio programming language. It's a #Smalltalk as well. Betcha didn't know that, huh? Not sure why, but these tend to come with a decent class library and some syntactical sugar, so I'll be fine I guess.
BTW, if you always wanted to implement a #lisp, I can highly recommend checking out its guide: https://github.com/kanaka/mal
