File::ConfigDir is a helper for installing, reading and finding configuration
file locations. It's intended to work in every supported Perl5 environment and
will always try to Do The Right Thing(TM).

File::ConfigDir is a module to help out when perl modules (especially
applications) need to read and store configuration files from more than one
location. Writing user configuration is easy thanks to File::HomeDir, but what
when the system administrator needs to place some global configuration or there
will be system related configuration (in /etc on UNIX(TM) or $ENV{windir} on
Windows(TM)) and some network configuration in nfs mapped /etc/p5-app or
$ENV{ALLUSERSPROFILE} . "\\Application Data\\p5-app", respectively.

File::ConfigDir has no "do what I mean" mode - it's entirely up to the user to
pick the right directory for each particular application.

WWW: https://metacpan.org/release/File-ConfigDir