Owncloud.
I personally never caught the Nextcloud hype, and stuck with the original. So far I’ve heard (and seen, having tried it twoce) nothing but trouble from Nextcloud while my Owncloud install continues to be rock solid for going on 10 years (regularly updated, of course!).
My take too.
A lab is a testing space, a playground, something that can be brought up and down and broken and fixed at will. It will be destroyed and rebuilt frequently.
As soon as it stops being possible to do that without someone (even if just yourself) getting annoyed that a service or functionality isn’t working, then you’ve graduated to homeproduction/homeserver/homedatacentre (depending on its size!).
Specifically with Influx.
How do you solve the problem of runaway memory usage? Even monitoring a few dozen hosts, memory usage would grow to many GB and continue to grow indefinitely until it OOM’d, and from my reading Influx has no way to prevent this.
I second CMK.
A TICK stack is unwieldy, Grafana takes a lot of setup, and all of this assumes you both know what to monitor and get stats on it.
CMK by contrast is plug and play. Install the server on a VM or host, install thr agent on your other systems, and you’re good to go.
Owncloud is not proprietary (it’s AGPLv3) and I’m really not sure where people get that idea.
The original Nextcloud/Owncloud fork was due to disagreements in development direction, not (say) like Jellyfin/Emby where there was actually a license change. Nextcloud wanted to “move fast”, Owncloud wanted stability. There was potential concern around the time of the fork that, perhaps, hypothetically, some day, Owncloud might “go proprietary”, but going on close to 10 years that has not happened.