gpg --output adr-wheezy-public.gpg --armor  --no-default-keyring --keyring ./pubring.kbx --export "005C 5FE6 71C8 60D4 E0E0  9E82 8BF1 BECF ED5E E4E7" 
gpg --output adr-jessie-public.gpg --armor  --no-default-keyring --keyring ./public.ring --export "95BF 1EAA B3B7 CECA 3C4A  60BC D19E 4638 B059 549B" 
gpg --output adr-stretch-public.gpg --armor  --no-default-keyring --keyring ./public.ring --export "4D1C D065 A2F7 F5F6 7637  5973 D700 D7C3 3FA8 CECA" 
gpg --output adr-buster-public.gpg --armor  --no-default-keyring --keyring ./public.ring --export "49B4 4029 0D05 E446 254B  81EB 073E CD72 DAFC DA7A"
gpg --output adr-sid-public.gpg --armor  --no-default-keyring --keyring ./public.ring --export "B376 6535 E2EA 8238 E5F6  68A7 01CB 9628 96A7 2B7C"


keyring in /etc/apt/trusted.gpg.d does not really work, so use `apt-key add` to add the key to /etc/apt/trusted.gpg



