tkvs toy kvs Run local $ TKVS_DATA=data cargo run --bin tkvs-server $ cargo run --bin tkvs-client -- http://localhost:50051 > help Public server $ cargo run --bin tkvs-client -- https://tkvs.kgtkr.net or $ grpcurl tkvs.kgtkr.net:443 list kgtkr.tkvs.Tkvs