uhhhh
i did weird stuff like computer architecture stuff kinda but probably not as cool as u might imagine, i made/tried to make programming languages/parsers/compilers/interpreters, trying to using python to make calculator programs (i got a start on this project and could do some basic stuff but never expanded it. plus there's already one, i think).
in terms of programming langauges i
did python, js (and the other web stuff like html), php, some c++ and a dash of java, and i KnOw ThE jSoN pRoGrAmMiNg LaNgUaGe and i did Scratch and made some cool stuff or started.
i mainly had/have unfinished projects and grand ideas. i did make this cool thing for website creation with php... and some python too.
probably my main interest was making the programming languages/parsers and such.