I'm displaying my technical ignorance here, but is there any reason having 2-3 other things (such as Nextcloud) running simultaneously with your nodes would cause any problems?
Discussion
Some of them do. Nexcloud is not too resource intensive and the same for running a nostr relay. I face the most issues when running electrum server.
Running nextcloud on a raspberry pi should not cause alot of disturbance as long as you have really good internet bandwidth. I'll be making an investment in a beefier set up soon tho. Its worth it!