Selfhosted
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.
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If you have a spare computer, install proxmox on it.
There are loads of tutorials how to do this, it has a good installer, after which it's all a web based GUI.
Use it to spin up VMs to your heart's content, create scripts to automatically provision a new Ubuntu or Debian or whatever flavour. Or run up some Windows VMs. You can pass through GPUs and other devices (tho this can be difficult, again lots of tutorials out there).
Be prepared to spend some time learning proxmox. It took me 2 or 3 installs to figure out the best way to set up networks, storage etc. Mostly cause I just jumped in, found something that could be better, googled that and found a useful tutorial on it so started again.
But once proxmox is running, everything else become so much easier
I don't think proxmox is great if you don't know Linux yet. It's an additional tool to understand. But I do regret not getting into proxmox earlier, since it makes trying new things so much easier.
could you share some tutorials? i'm thinking to rebuild to setup better storage for VMs and backups
That's a pretty broad question.
How many nodes are you running? Are you using CEPH? Or another flavour of distributed storage? Or external nas/san? Or just local arrays? Zfs? Btrfs?
What's your backup strategy? Do you use Proxmox Backup Server?
If you can figure out what you don't like about your current setup, there will probably be a tutorial or article about alternatives.
Sometimes they can be applied without having to reinstall (actually, 99% of them probably can. Sometimes I just find it easier to start from scratch tho)