@maija @meeper you still need a protocol for sockets and shm.

XDR is basically just C structs with a well specified memory layout.

BER would be ok but it has some recursive bullshit which cbor inherited a smaller amount of. DER and Ember subset away the foot guns and isn't actually that hard to deal with.

Protobuf is kind of ok, though i prefer the way ber and cbor handle unsigned numbers