Thanks Guy, Hugh & Tom for the replies.
From: ts [mailto:email@example.com]
use #read and #write rather than #puts #gets
This did the trick!
It also forced me to revisit structs/constants for extensions as I now get
"uninitialized constant" for ProcTableStruct in the client (but not the
server). I think someone already posted the solution for that, so I’ll go
back and track it down now.