This is the next big step after "tournament mode" aka "multi-client mode" aka "networking features".

This covers the addition of a traditional backend server that supports both persistence and a central channel for distributing real-time updates to an event's card draw. Replacing the current peer-to-peer networking with a central backend will fix the existing difficulties of maintaining/re-establishing connections in unreliable network conditions and with devices that go to sleep.

Even without any networking between devices, persistence will remove the pain of an accidental reload or browser crash in the middle event.

Remote persistence also opens the door to never-before considered card draw scenarios, such as live-updating card draw iframe embeds on other sites (e.g. along side a bracket?).