Also ich bin beim Ping geblieben, allerdings mit dieser: CRANE Bell Co. Fahrradklingel E Ne W Clamp Band Mount (https://amzn.eu/d/ePza7K4). Die überhört kaum jemand, der es nicht überhören will…
We installed Doom (1 or 2, I don’t remember) in an invisible folder and played via the 10Base-2 network. Those were the 90ies…
I‘ve designed the interior of our house with SweetHome3D about 10 years ago - so yes, it should definitely be possible, but at that time it had a bit of a learning curve. Still not as bad as using a full fledged CAD package for that job…