Nice! I had been wondering if the move to HTTP-3 over UDP would open up possibilities for media over a multicast HTTP transport. Looks like somebody's already doing just that.

Only downside is that multicast sucks over wifi when many devices (like in a corporate env) are all trying to view a multicast stream. The time slice allotted to multicast is way too small to handle it. I really wish there was a spec created for wifi simplex connections where a channel could be reserved for broadcast with one signal to be consumed by many receiver devices.