How about Akka-grpc with flatbuffers, thoughts/possibility?

Though AkkaGRPC works seamlessly with ProtoBuffers, GRPC has stated out of box support for FlatBuffers any chance it will be possible to use FlatBuffers instead of ProtoBuffers in AkkaGrpc?

p.s I understand ProtoBuffers give quite a good performance but as stated FlatBuffers are still slightly better, food for thought?

It’s not currently possible as far as I can see, Akka gRPC is quite tightly coupled with Protobuf to make that really convenient (since that is the de-facto way gRPC is used).

Making it possible to switch between Protobuf and other formats would probably require quite an effort, work wise.