you could use Go and i already have a second draft blossom server written in go. i didn't write it. claude spun it up in about 3 hours and then another hour fixing it and i just haven't tested it yet. i know it works because it's just http and the tests pass, and i saw it accepting, and allowing me to delete a random blob several times. i just haven't used it. probably https://relay.orly.dev/ will already serve you with blossom. imma make sure you both have permissions in case you want to try it