The interesting thing here for me (aside from the actual ideas about home directories) was varlink. Is this the new D-Bus? It looks like yet another IDL and se

The interesting thing here for me (aside from the actual ideas about home directories) was varlink. Is this the new D-Bus? It looks like yet another IDL and server/client. Aside from being JSON etc, what are the advantages of gRPC/protobuf, or even ONC RPC and XDR? Oh and full disclosure: I actually like the various systemd utilities and functions. Things like the resolver replacement can be a pain when you want to do weird split horizon and other things, or for bastions of VPNs, but as systemd has "settled" it compares reasonably well to Sun and Apple's equivalents.