@pebble not exactly what you asked for, but possibly worth considering; I also hosted/admin'd nextcloud on a dedicated server and did all the looking-after and upgrades myself (and boy oh boy did it want CONSTANT upgrades) and I actually liked nextcloud but I found it taking up a big chunk of my time.

Hetzner does managed nextcloud hosting for like four euros and change a month, and for that you get a terabyte of space and they handle all the upgrades and the worrying about it and it just works. I've been very happy with it.