A text editor as a user interface

Good idea!

On another note, I dig your box of cards. I've recently re-encountered the Commonplace book [1] idea in multiple places (and when two events pertaining to the same object of inquiry occur simultaneously, I always pay strict attention), and this is kind of a similar idea.

I've had wikis before but they always became more about the engine / storage / infrastructure / etc, and I like your lightweight vision.

[1] https://en.wikipedia.org/wiki/Commonplace_book