(Author here) Maybe you missed the point of what I wrote. I thought the disclaimer made it clear this is just a tiny project for 3 users only and not something meant to scale :) Is my product inferior to Notion, Slack, etc.? OF COURSE. Do I use Notion extensively? Fuck no. I'm more of a Bear (now Craft!) user, but I needed Notion for a handful of tiny features that Tiptap now gives me. So should I pay $60 per seat for the little I need, and miss out on the fun of building my own tool? I think not. But hey, that's just me :)
it's in Hongdae ("Hongdae T Stay" on Booking). I paid ₩39,000 a night (~23 euros) with a 25 day stay.
I don't think people stay long there, it was mostly foreigners. The bed is like a plank, there is no window. But it was cool, I enjoyed it :)