For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6/openSUSE_Tumbleweed/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6.repo
zypper refresh
zypper install pinentry-rofi
For openSUSE Factory ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6/openSUSE_Factory_ARM/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6.repo
zypper refresh
zypper install pinentry-rofi
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6/15.6/devel:Factory:git-workflow:staging:mcepl:pinentry-rofi:6.repo
zypper refresh
zypper install pinentry-rofi