Once a Week a happy zef
Since zef installs modules to a temporary directory and may or may not set the
$*CWD to what we would like, we need to open files in tests carefully. Given that files of interest to a test file are in the same or a child directory of the test, we can operate relative to $*PROGRAM.
my $gitconfig-path = $*PROGRAM.parent.child('data').child('gitconfig');
That would translate to
t/data/gitconfig seen from the modules base directory.