I’m slowly wading into item-creation, added two new recipes today: lightstrip (long-lasting 1-radius light) and noise emitter (jacked up radio that blares static). The lightstrip can even be used to train your electronics skill from 0 to 1, if you can get your hands on amplifier circuits somehow :).
I still want to add things like alarms, sensors, RC cars, and such. RC cars will require me to do some interface brainstorming, so no guarantees about those just yet.
Wiring is also a really fun idea, IMO, although it really assumes power generation, and I want to retain the post-apocalyptic feel of the game. In terms of fitting with the game’s tone, I might make wiring prone to failure and/or fire, if I add wiring.