How do you backup important things you store in selfhosted clouds?
I’m currently thinking about hosting Ente myself for syncing all my pictures. Maybe also spinning up nextcloud for various other shared files. However, for me one main benefit of using services like iCloud is the mitigated risk of losing everything in case the hardware fails (and fire, theft, water-damages, …).
Do you keep regular updates on hosted services? Do you keep really important stuff on other providers? Do you have other failsafes?
It really depends on how much you enjoy to set things up for yourself and how much it hurts you to give up control over your data with managed solutions.
If you want to do it yourself, I recommend taking a look at ZFS and its RAIDZ configurations, snapshots and replication capabilities. It’s probably the most solid setup you will achieve, but possibly also a bit complicated to wrap your head around at first.
But there are a ton of options as beautifully represented by all the comments.