Found this howto for nextcloud’s high performance backend on debian 10, which I might give a shot when I have time. It’s in german though, but as most other howtos I found are for ubuntu, I thought, I’d link here. Maybe this can also be of some help.
@dev_team Wouldn’t it be a great feature if we could get a one clic installable - high performance backend for nethserver-nextcloud? It would be a quite unique feature and great enhancement for nethserver-nextcloud in my point of view.
As alternatives I will have a look into jitsi and/or community work on matrix/synapse. Any input or feedback is welcome and highly appreciated. 