Would love to know if you decide to work on this, or if otherwise, want to collaborate. feel free to email me hello@mannan.is - or maybe I'll begin work on this before you and we can share notes

edit: I don't particularly care for Google Sheets, just the idea of solving the underlying problem.

Yeah I regret throwing that in the mix because it seems to have rubbed folks the wrong way for whatever reason. I just think avoiding storing state means it's a much easier project. Doesn't have to be G sheets.