Getting started - vm & lxc templates

List and import lxc templates:

```
pveam list
pveam download local ubuntu-22.04-standard_22.04-1_amd64.tar.gz
pveam download local ubuntu-24.04-standard_24.04-1_amd64.tar.zst
pveam download local debian-12-standard_11.7-1_amd64.tar.zst

```