Yeah it definitely is a pain for adding multiple machines.

I can’t offer technical network advice on vps headscale; Personally I’m not confident in my network skills. I would be more inclined to go through the pain of manually setting up wireguard instead of having a tailscale or headscale service-- and skipping the middleman so to speak.

Edit: setting up a new system this month, Tumbleweed has moved to SE Linux Enforcing as default. It provided some ssh and samba challenges at first until I learned about setting SEL policies. So maybe hardening with SE Linux would also be smart. For example I could SSH remotely into my machine but due to policies being locked down I could not run user bash, or even see contents of the home folder.

You are lucky. Underground cables? We are West Coast of Canada, generally fine all summer, but November is windy season and maybe once a year it is out for a few hours when trees have taken out power lines. Its the undervolt or overvolt that people don’t notice unless they monitor it. My UPS sometimes kicks in for a minute or two, and the report shows 100v instead of 110v, or sometimes a surge of 129 for a brief period. 15 years ago I never cared, till I was doing workfrome home design contracting, and lost a whole days work to power outage and corrupted files. The UPS became cheap insurance.

Cyberpower 1500 AVR for me. Router, WiFi, and server run off of it. It has kept me going on the internet during power outages as well as ding voltage correction when we have under or overvolt power moments. And I use the cyberpower Linux app they provide to set server shut down time based on battery level. It has saved my equipment a few times. We have occasional wind induced power failures here (overhead power lines) and had a crow land on a transformer and explode which immediately triggered the UPS to clean the sudden blip. Also had an HP laptop power charger fuse itself internally and UPS detected the short and shut down all power. Without that UPS, the pack might have overheated if the panel breaker didn’t sense the short.

Its good for keeping your firewall or other services running, like homeassistant, during powered outages. But UPS also corrects power when it is dirty and protects your equipment.

Anonymously report them. Don’t call police they will come and take the server

People are replying like they are because you have asked for help but aren’t able to provide details on the steps, the yml files, or other commands you executed. Essential it is like when my wife calls me on my phone and says “I’m lost, where am I?” And I have no clue where she is because she can’t provide me street names or what direction she is travelling. Basically nobody here knows where you are.