It is in the EPEL7 repos so easy to install on CentOS/RHEL 7
Due to PHP version limitations I can’t build this there on EL6
Do note that with the min PHP version being bumped in nextcloud 12 to 5.6 there cannot be an EPEL7 package for that then.
I’m not 100% sure if I’ll continue to maintain nextcloud 11 in EPEL7 for as long as it gets updates or if it’ll be retired at that point - but that’s still some way off and I’ll have an article with the options available to people nearer the time of that event.