I managed to hose my Home Assistant by doing a partial restore from last night’s backup. (Everything except the media folder because that is about 30 gB).
So, unless someone has a better idea, my plan now is to reflash the M.2 boot drive in my Intel NUC then try the restore from backup again.
I have the 30gB tar file and I also have a copy of the /config folder from yesterday. Which would be a better vector to recover my system?