Hi,

At some point git will change the default branch name so we will have to either:

 1) do nothing; new projects will use the new default, old ones will continue with 'master'
 
 2) add --initial-branch=master to dh-make-perl and ignore the change of the default
 
 3) add --initial-branch=debian/unstable to dh-make-perl; change all existing projects

If we choose 3, there will be some automated way to migrate the projects and the local clones
(salsa api create_repo parameter from + delete_repo; local branch -m + --set-upstream or similar)

Also: DEP-14 https://dep-team.pages.debian.net/deps/dep14/
and the discussion around it at the BoF @ DebConf21