With Alonso's "help", I merged in restricted channel support to @librecast today.
This lets a receiver set a filter on an inbound #multicast channel with a keyring and capabilities.
Any traffic arriving must be cryptographically signed and have a token signed by a key on the filter keyring, and have the required capability bits set, otherwise it is silently dropped by standard API recv calls like lc_channel_recvmsg().
"...much of the research into multicast is funded and driven by large corporations, who have no interest in many-to-many communication, and no interest in human rights. The primary focus of most of these corporations is in building one-to-many systems that reduce their costs for providing livestreaming of sponsored events. Multicast to them is an advertising delivery system. This more closely resembles broadcast than multicast."
#BrettSheffield, #Librecast project, 2025
Yes, I was similarly delighted, but found out very late. Hopped on a session.. hoping to be able to hop onto some more.
I also watched the start of a true must-see video by Brett Sheffield of @librecast ..
"Zen and the Art of Multicast: An Inquiry Into Values" 
A graphical comparison of the distributions of time-to-completion for naive Multicast vs TCP Unicast, in multiple experiments in three different schedules. (y axis is logarithm of time in hours)
TCP clearly benefits from staggered start. Multicast doesn't seem to matter actually.
"The #Librecast Project is building the software required to rebuild our internet using #multicast, with privacy, accessibility, and efficiency as design goals from the outset. Multicast delivers networking with consent. You only receive the data you subscribe to and can unsubscribe anytime. Each platform user will be in control by allowing the end user to choose which channels to subscribe to and leaving rendering until as late as possible."
Working on Librecast allows us to do something positive while working on exciting and challenging technical problems.
We don’t do this alone. We have no competitors. Everyone who is working to improve and protect Human Rights is our ally. There are many paths to the top of this mountain.
We spoke to @EC_NGI about our work funded by @NGIAssure and what we've been able to build thanks to the support from @nlnet and it's partners.
#NGIAssure #multicast #librecast
https://ngi.eu/ngi-interviews/esther-payne-and-brett-sheffield-librecast/
in calmness 
