our nostr:npub1qdjn8j4gwgmkj3k5un775nq6q3q7mguv5tvajstmkdsqdja2havq03fqm7 and nostr:npub1wqfzz2p880wq0tumuae9lfwyhs8uz35xd0kr34zrvrwyh3kvrzuskcqsyn are both familiar with C

my relay #realy is here https://realy.lol it's written in #golang because it's the best language, that repository is a composite of forks of fiatjaf's go-nostr and relayer projects that have been heavily rewritten, most of the JSON handling is done with custom, super fast hand written codecs, i took his eventstore - the badger version, which he hates, and made it super sleek, it also has a garbage collector so you can control how much storage it uses and i just got done adding full support of expiration tags just today so it can be used with events that you mean to be deleted... and yes it also properly deletes events, as requested, if you made them, and i'm pretty sure between the custom JSON codec and the badger k/v store it could be one of the fastest relays there is

as for these other things, media and streaming and such, it's go, it's not hard to plug things in like this i just have been focused on getting the base right

also, #welcome to #nostr, fellow server/back-end/systems programmer