perl-App-Countdown from devel:languages:perl:CPAN-A project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:perl:CPAN-A/openSUSE_Tumbleweed/devel:languages:perl:CPAN-A.repo zypper refresh zypper install perl-App-Countdown
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:languages:perl:CPAN-A/15.5/devel:languages:perl:CPAN-A.repo zypper refresh zypper install perl-App-Countdown