Almalinux is a 1:1 binary-compatible replacement for CentOS 8 (which we all now know is dead).

Please add support within katello/foreman for AlmaLinux as a supported OS.

I have tested it thus far, and everything seems to work with an AlmaLinux 8 host as a registered client. I have been able to create a product, repositories, register, etc.

The only thing I have noticed is in the host list, the client OS shows up as "Unknown 8.3".

I do not know all the bits and pieces that need to be tweaked, but it would be great to have this supported. AlmaLinux is clearly a viable CentOS 8 alternative.