So, no limits? I guess it would respect the user npub and relay choices, and then render anything at all? This is really interesting.
Yes, each column (mini-app) like this will have certain permission to make sure it doesn't affect user's account or cause security risk
It's cool, I'm imagining some of the cool DVMs I've seen, or community/organization contexts etc.
Initial feedback from today is just to continue working on quality of life stuff, making it bulletproof e.g. Side scroll of columns breaks layout. Search occasionally fails. App crashes intermittently. Created new user then clicked profile and it generated an error. Lmk if you need more info on these. These are minor things, I'm in love with what you're building, and would say Keep Going!