I tested the ppa:slashd/test apt-mirror 0.5.4-1ubuntu0.18.04.1+testpkg20200428b2 package on my Bionic 18.04.4 LTS mirror host, and it successfully got all applicable cnf directories for the 20.04 focal release. It looks good for me!
I tested the ppa:slashd/test apt-mirror 0.5.4-1ubuntu0. 18.04.1+ testpkg20200428 b2 package on my Bionic 18.04.4 LTS mirror host, and it successfully got all applicable cnf directories for the 20.04 focal release. It looks good for me!