First off, mods, please let me know if this kind of post isn’t allowed - I’ll remove it with no issues.
I found a fantastic Youtube guide for switching to Proxmox VM from a Raspberry Pi - very nicely done, with a non-annoying voice (personal preference, YMMV).
Hi Alex, this might help someone, don’t know how the mods make of it.
One of our valued HA users (@tteck) has created very useful scripts to install all kind of stuff on Proxmox
and also for different HA versions: they reside under https://tteck.github.io/Proxmox
With those, you install HA in a blink of an eye and if you have a backup, you can simply use that during onboarding in HA to move your current config onto the new setup.