Hi, I like the clean design in place and the idea in general - sometimes all I need is a single note, a mess of which to pull the important info into your daily driver notes app.
Of the features that I miss that I would find useful - it would be good to be able to insert horizontal rule, to separate the mess better. Also a small ui/ux issue - the shortcuts in the quick guide are not easily visible on the dark theme. I would also find it useful as a easily accessible menu bar or it being a global shortcut away so I can pull it up any time without stopping what I'm doing.
All in all - cool product, will keep up to date with it to see where you get it from here.