Para standard execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update/standard/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update.repo
zypper refresh
zypper install imap
Para pool-leap-15.4 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update/pool-leap-15.4/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update.repo
zypper refresh
zypper install imap
Para pool-leap-15.3 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update/pool-leap-15.3/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update.repo
zypper refresh
zypper install imap
Para pool execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update/pool/home:bastianfriedrich:branches:openSUSE:Leap:15.3:Update.repo
zypper refresh
zypper install imap