That is awesome. I tried watching it and found it hard to take, but skimming through it was delightful.
I still have an 8" floppy in the top drawer of my desk. I’m keeping it around in case I get a chance to get a program I was working on to finally compile. BTW, this was on a Terak that was also used in some early work in the development of Matlab. (I suppose that really belongs in the “Are you old” thread.)