I run a NUC and a few other things off a 125W elcheapo $20 bestek(?) inverter off the house battery.
Sure it gets converted twice but the juice is cleaner in the end.
And consider DIYing a big house battery. The cells are cheap now. I built a 1200Ah LFP bank just because it fit nicely in the compartment. Then throw some solar at it.
And for backup, just get a large spinning external and plug it in occasionally to sync a copy. Put it back in the Tupperware for cold storage.