Looks great! I see your tool uses Hetzner block volumes for storage. How do you manage your data backups (as Hetzner does not offer anything for their block storage volumes as far as I know).

My current setup is also on Hetzner. 1 master and 3 worker nodes. Managed by Rancher and I use Longhorn (also from Rancher Labs) for storage. It runs stable for two years now. But looking for a simpler solution, so I looked into k3s and k0s last week -- will also look into your tool ;-).