I run a server off grid with solar and 200 ah lifepo batteries to run the small computer, router, and cell phone for internet (all running on 12v dc) The only tricky part was getting a small arduino to kick on a relay for the usb connection between the phone tethered to the router. It there ever is a shut down the router has to boot up before the phone or it won’t tether. The whole set up max draws 8 amps but it rarely draws that much. This is also my 12v setup for everything USB and the lights. I have tried my off the shelf Bluetti power supply but the idle power draw from the inverter uses way too much juice. So I have a couple different systems. The 12v is always on and in 4 years I have never run out of juice with 400watts dedicated solar panels.
If you can move to one of these new mini servers you can run everything off a 12 volt system and skip the power hungry inverters.
That’s not a bad idea, but mine was really simple and effective to setup and requires nothing else to make it work properly, no changes, no reinstall and reconfiguring for anything. It just works right out of the box the way everything is setup already. And it will run for 24 hours, the power has never gone out that long here except once 15 years ago when a windstorm of 126 MPH knocked out half the city and toppled a few hundred poles.