Learn code using math (or the other way around)

Hi everyone. I see a lot of neat web-based IDEs on HN for simple coding, like EndBasic, EasyLang, etc. I always like trying these out, but feel like they all lack a reason to use them--in other words, to keep me using them, I wish they'd offer some themed lessons that I can do to try out coding with these platforms. Take EndBasic. I launch the interpreter in my browser. It looks cool and reminds me of a TRS-80 from the 1980s. But now what do I do now?

Anyway, throwing my hat in the ring: https://codebymath.com. Lots of small mathematical problems that can be solved using code. (Started this a few years ago to help teach a home-school group about coding, that was tied to lessons from their math class.)