Adrian wrote: Unfortunately, Debian Ports currently does not build any packages
from the non-free repository. This means, if you need a package
from non-free and it's not an arch-all package (_all.deb suffix),
you will have to build that package yourself.
We might build contrib and non-free packages for Debian Ports
in the future, but I am not sure whether that's possible from
the legal point of view.
AmigaOne X1000 platform specific issues related to Linux only.
Adrian wrote: I forgot to mention. You need to install the package "debian-ports-archive-keyring":
# apt install debian-ports-archive-keyring
In case you are prompted to install from an untrusted source, say "Y".
Then run "apt update" again.