hi, i'm considering using my rock64 as a nextcloud server, only thing i'm not sure of is how much trust i should put into community built operating systems as it would be the first time using such. and i just don't want my partially very sensitive data sent to someone else while i don't know of such things. thanks for your much appreciated help.
Well, I have been using them on a Rock 64 since I got it when released, running my own server with Owncloud, samba, minidlna and using Webmin to administrate when I am lazy. Replacement for an Orange Pi plus, that was a replacement for a Banana Pi. All using community developed kernels. Work fine. If you are worried, you can build your own, all the details, patches, source code and config files are available (open source) and check them for yourself. In other words, as safe as, or safer than, commercial alternatives.