Hello Wendy,
I used enamelled copper wire. Modern enamel burns off after application of the iron for a few seconds. Normally I run the wiring on the top side but I thought that might spoil the visual impression (which is as important as function for me
)
I've included expansion capability but can't decide what the expansion card should do.
I've also got a stotten rinking cold that is putting a damper on further work