ProxmoxVE helper scripts have been around for quite a while and are pretty easy to read, as well as being pretty well supported in the community. You can just go to the GitHub page and read them. I’ve used some of their scripts before by downloading them, customizing the scripts to my needs, and hosting it on a local web server inside my network. Now I can run one command and I’ll have a new debian container on my host with ssh keys and everything.

Very few people actually change their SSID. The bigger point is that, considering sites like Wigle.net exist and the Google Street view cars were designed to capture all SSID data (they hired the guy who made NetStumbler, a popular open source SSID scanning tool in the early 2000’s), it’s trivial to get within a few hundred feet with just a few SSID’s in an area. When your neighbor has an SSID of Comcast-12345 (aka random string), there is probably only one location that has your SSID and the Comcast one in the same location. You can change your SSID every day, but your neighbors probably don’t change theirs.