Earlier quoted context omitted.
There are all sorts of things like this, but one that springs to mind is drones, specifically FPV drones. You can build a very good drone from basically parts that runs on open firmware. The videos that you see coming out of Ukraine is clearly using flight control software that is basically the standard for non commercial drones. Nothing more cyberpunk than fighting fascists using open source software and commodity h…
What seems to be lacking is the path to accidental discovery that underlies these stories from the past. Is there a reasonable way people will find themselves building drones without being intentional about it?
I have built them for dozens of non technical friends too. And then they themselves got into fixing them once they broke. Solder the wires. Get parts 3d printed etc..