# cat sources.list
deb http://ftp.debian.org/debian bullseye main contrib
deb http://ftp.debian.org/debian bullseye-updates main contrib
# PVE pve-no-subscription repository provided by proxmox.com,
# NOT recommended for production use
#deb http://download.proxmox.com/debian/pve bullseye pve-no-subscription
# security updates
deb http://security.debian.org/debian-security bullseye-security main contrib
deb http://download.proxmox.com/debian/pve bullseye pvetest
# apt update
Hit:1 http://security.debian.org/debian-security bullseye-security InRelease
Hit:2 http://ftp.debian.org/debian bullseye InRelease
Hit:3 http://ftp.debian.org/debian bullseye-updates InRelease
Hit:4 http://download.proxmox.com/debian/pve bullseye InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
pvetest
was on February 23rd:libtpms-dev_0.9.2~bpo11+1_amd64.deb
libtpms0-dbgsym_0.9.2~bpo11+1_amd64.deb
libtpms0_0.9.2~bpo11+1_amd64.deb
linux-tools-5.13-dbgsym_5.13.19-10_amd64.deb
linux-tools-5.13_5.13.19-10_amd64.deb
proxmox-widget-toolkit_3.4-7_all.deb
pve-headers-5.13.19-5-pve_5.13.19-10_amd64.deb
pve-headers-5.13_7.1-8_all.deb
pve-kernel-5.13.19-5-pve_5.13.19-10_amd64.deb
pve-kernel-5.13_7.1-8_all.deb
pve-qemu-kvm-dbg_6.2.0-1_amd64.deb
pve-qemu-kvm_6.2.0-1_amd64.deb
pve-zsync_2.2.2_all.deb
swtpm-dbgsym_0.7.1~bpo11+1_amd64.deb
swtpm-dev_0.7.1~bpo11+1_amd64.deb
swtpm-libs-dbgsym_0.7.1~bpo11+1_amd64.deb
swtpm-libs_0.7.1~bpo11+1_amd64.deb
swtpm-tools-dbgsym_0.7.1~bpo11+1_amd64.deb
swtpm-tools_0.7.1~bpo11+1_amd64.deb
swtpm_0.7.1~bpo11+1_amd64.deb
pve-no-subscription
.