This has been very useful to me as someone with a very limited understanding of code/computer science principles. So foremost, thank you very much for creating this!
One thing I've noticed, and maybe this is a chrome/mac interface issue, but when doing the coding practice segments, I was unable to copy code snippets and paste them in a separate text document. It just gives me the URL for this itch.io page. Yeah of course I could(should?) type them out. But for quick note taking etc. not being able to extract stuff quickly is a pain.