Fast configuration for SKUDONET Community Edition APT repository:
1#
root@skudonetADC#> wget -O - http://repo.skudonet.com/ce/skudonet.com.gpg.key | apt-key add -
2#
root@skudonetADC#> echo "deb http://repo.skudonet.com/ce/v7/ bookworm main" > /etc/apt/sources.list.d/skudonet.list
3#
root@skudonetADC#> apt update --no-list-cleanup -o Dir::Etc::sourceparts="-" -o Dir::Etc::sourcelist="sources.list.d/skudonet.list"
root@skudonetADC#> apt upgrade --with-new-pkgs -o Dir::Etc::sourceparts="-" -o Dir::Etc::sourcelist="sources.list.d/skudonet.list"
4#
root@skudonetADC#> cp /etc/apt/trusted.gpg /etc/apt/trusted.gpg.d/
5#
root@skudonetADC#> /usr/local/skudonet/bin/checkupdates
SKUDONET APT repository configuration has been created.

More info here.