I have already installed zfs 2.1.5 module with everything for DKMS in /usr/src after executing following command: apt install zfs-dkms.
But How I can add new versions of zfs modules?
- Should I compile and build custom DKMS package from downloaded zfs source before putting folder with it into /usr/src/ with created created by myself dkms.conf file? https://openzfs.github.io/openzfs-docs/Developer%20Resources/Custom%20Packages.html 
- Or I can just put downloaded zfs source with make files and with created by myself dkms.conf file into /usr/src/? 
I've tried to find any information about this, but found absolutely nothing.
