I have been searching around to identify whether it is possible for peer applications to serve as peer servers for the client api as well?
A “peer application” is any application that includes the Datomic Peer library.
The Peer Server is a specialized peer application whose job it is to serve as an endpoint for Datomic clients.
A general “peer application” can do any work you design it to do, however it doesn’t automatically provide the functionality of a Peer Server instance.