DEBIAN

TRIXIE

wget -O - http://debian.rvmgroup.it/debian.rvmgroup.it.key.asc > /etc/apt/trusted.gpg.d/debian.rvmgroup.it.asc

cat << EOFile > /etc/apt/sources.list.d/debian.rvmgroup.it.sources 
Types: deb
URIs: http://debian.rvmgroup.it/debian/
Suites: trixie
Components: main
Signed-By: /etc/apt/trusted.gpg.d/debian.rvmgroup.it.asc
EOFile

sudo apt-get update

BOOKWORM

wget http://debian.rvmgroup.it/debian.rvmgroup.it.key.gpg -O /etc/apt/trusted.gpg.d/debian.rvmgroup.it.gpg

echo "deb     http://debian.rvmgroup.it/debian        bookworm  main" | sudo tee /etc/apt/sources.list.d/debian.rvmgroup.it.list

sudo apt-get update

BULLSEYE

wget http://debian.rvmgroup.it/debian.rvmgroup.it.key.gpg -O /etc/apt/trusted.gpg.d/debian.rvmgroup.it.gpg 

echo "deb     http://debian.rvmgroup.it/debian        bullseye  main" | sudo tee /etc/apt/sources.list.d/debian.rvmgroup.it.list

sudo apt-get update

UBUNTU

MANTIC

wget -O - http://debian.rvmgroup.it/debian.rvmgroup.it.key.asc -O /etc/apt/trusted.gpg.d/debian.rvmgroup.it.gpg

echo "deb [arch=amd64] http://debian.rvmgroup.it/debian        mantic  main" | sudo tee /etc/apt/sources.list.d/debian.rvmgroup.it.list

sudo apt-get update

APT KEYS

debian.rvmgroup.it.key.asc
debian.rvmgroup.it.key.gpg

Install key from keyserver:
 sudo apt-key adv \
      --keyserver hkps.pool.sks-keyservers.net \
      --recv-keys AC6A9FDC00E41E83ACC4C24BD769B90261EAB64A