1/path/to/write-nix-expression.sh Group::Module::Submodule
2
3It will output Nix assignment formatted for placing into
4all-packages.nix amongst all the perl packages, like perlAlgorithmDiff.
5Actually it will grab distribution unit Group-Module-Submodule via
6search.cpan.org, and make some effort to write correct dependencies.
7If among requirements there are some that have empty META.yml, or if
8any of requirements acannot be installed by just getting distribution
9unit whose name can be guessed by replacing :: with -, manual editing
10will be needed.