proxmox
Setup
#/etc/apt/sources.list
deb http://ftp.pt.debian.org/debian bullseye main contrib non-free
deb http://ftp.pt.debian.org/debian bullseye-updates main contrib non-free
deb http://download.proxmox.com/debian/pve bullseye pve-no-subscription
# security updates
deb http://security.debian.org bullseye-security main contrib non-free
add to all packages non-free
Workstation UI
apt install gnome
apt install lightdm
#disable
systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target
#enable
systemctl unmask sleep.target suspend.target hibernate.target hybrid-sleep.target