The best I’ve seen include a transcript, even better when it is clickable and updated the position of the video. Pure video isn’t great, lots of wasted time. Pure text is better, but also takes a lot of attention and focus. For very in depth information text can’t be beat though, unless they are making a ton of separate videos which also gets cumbersome.
It did. I checked their opensource repo and it looks like they removed it in 10.15. The shell was also tcsh at the time and the terminal, I think, defaulted to black on white. Everything about it was unfamiliar to a Mac user, it felt like an old library Dynix system.