The friends room escaped a single browser

— My son joined and saw my room.
— Congratulations, meatbag. We have reinvented the internet.

At first, the “friends room” was only friends with itself: another phone knew nothing about it. A social mode for one turned out to be a fairly niche product.

We added a Worker, persistent D1 storage, invitations, and shared scores. Rooms now travel across devices, and future games can join the same system without breeding a new zoo of accounts.