Yes! That’s such a great post. For people interested in this, I strongly recommend getting a hold of the old Windows 2000 era user interface guidelines book from Microsoft.
What book are you talking about? Is it "Microsoft Windows User Experience" published by Microsoft Professional Editions?
Aside: Thank you for your video! It looks great and that's yet another OS I'd like to try and play with -- along with Plan 9, which Serenity made me think of a bit, and TempleOS because of the soul-saving effect of devoting to a hard piece of beautiful software craftmanship.