sudo apt-get update
sudo apt-get install -y ca-certificates curl
sudo install -m 0755 -d /etc/apt/keyrings
sudo curl -fsSL "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x8cfdd6b51a2d8a9e" -o /etc/apt/keyrings/digon.asc
sudo chmod a+r /etc/apt/keyrings/digon.asc
# Add the repository to Apt sources:
echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/digon.asc] http://pkg.digon.be digon main contrib non-free" | \
   sudo tee /etc/apt/sources.list.d/digon.list > /dev/null
# 
sudo tee -a /etc/apt/preferences.d/digon.pref  <<-EOF
Explanation: : digon
Package: *
Pin: release a=digon
Pin-Priority: -10
EOF
sudo apt-get update