If you want to move your body from Moscow to Boston, you'll probably need an airliner and a security-checked-visa. But if you want to put your hand in your own pocket, you shouldn't be forced to use the international-transport-system and security hurdles.
But becos the kiddies want to play-smart-ass, they tell me that I need ethernet & SECURE-shell to access the rPi's file next to the PC:Slakware.
Previously, when all PCs had par-ports, there was `plip` which apparently could inter-connect closely located PCs.
Couldn't IC2 [2 wires] & some simple software replace the ethernet/SECURE-channel farce?