With the current Erlang history that’s it. Basically the :rpc.call gets the history for the VM the remote shell was started by (rather than the one it is remote shell connected to). The call :group_history.load/0 basically dumps out the contents of the Erlang disk logger.
In the case of this project I added the :global feature for folks that like the existing shell. Tempted to remove it.
Ha, nice. Of course it’s called something like group_history so I can’t easily find it… 
I also got a reply on ErlangForums: Where is the global shell history stored? - Questions / Help - Erlang Programming Language Forum - Erlang Forums
Thank you!
EDIT: That being said, I can’t find the docs of group_history at all but this link seems to contain the source: erlang-history/src/5.2/group_history.erl at master · ferd/erlang-history · GitHub