It does not need to be on-premise if you don't want it to - feel free to run an instance in some hosting centre somewhere, either as the main instance of as a h

It does not need to be on-premise if you don't want it to - feel free to run an instance in some hosting centre somewhere, either as the main instance of as a hot standby or some load-balancing scheme. What I do wonder about is how they secure the installation against leaks of any kind. I've done quite a bit of Owncloud/Nextcloud development but I still do not have the feeling I can totally trust the beast, there are just too many strings attached everywhere to be able to get an overview of what would happen if e.g. a less-than-stellar "Nextcloud app" (like some of my earlier experiments...) were to be installed. Such apps could open up the system to intruders if they are not configured correctly.