> here's hoping that someday headphones without pressure (e.g. active/passive noise cancelling) will make a comeback, too
What do you mean? There are tons of wired headphones that don't do noise cancelling at multiple price points.
I can still pick up a new pair of headphones that I started using 10 years ago (AudioTechnica m50x if you want the recommendation).
You can make a NES emulator, that's neat! I'm probably not your target audience it seems. I don't know why a large amount of programmability is beneficial for a knowledge document system. Then again, I don't generally like my notes to be much fancier than text when possible so I can read it on any device or platform.