For servers autorestic just worked. It's a wrapper for restic. I sent data to backlaze B2 and StorJ. Now that I have a couple proxmox hosts in a colo, I have an off-site PBS running in ZFS.rent.
First VMs back up to local PBS , then nightly that's synced to ZFS.rent. I have PVE set to do encrypted backups to PBS so it's all encrypted.
I 2nd this.
Be aware hosting media thru their proxy is breaking their ToS. Not saying anything will happen, but be mindful.
Yeah unfortunately iOS is very stingy with battery. Thankfully there's a few apps that use apples push and ejabberd supports it. I haven't tested them in a while tho since I'm on android.
Mattermost is great and I'm pretty sure they have an iOS app. I don't believe the messages are encrypted on MM, but if you're running the infra it's not too big of a deal IMHO.
I run ejabberd for myself and my family/friend and use conversations on android. Mattermost I would say is the most like discord. I run one of those as well and love it.
I use NGiNX and have ever since I started. It just works and is easy to configure.
I was happy with Cloudfanatic.