Had an interesting conversation with someone from the IETF about #multicast today.
Some folks have been trying to solve the problem of getting multicast streams from unicast only sources (Off-net Sourcing) such as browsers.
This happens to be something #Librecast built a demo for back in 2022 as part of #NGI0Discovery and which we're working on again now as part of #NGI0Core thanks to @nlnet so I think we might be able to help.