For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ojkastl_buildservice:Branch_devel_languages_go/openSUSE_Factory/home:ojkastl_buildservice:Branch_devel_languages_go.repo
zypper refresh
zypper install doggo
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:ojkastl_buildservice:Branch_devel_languages_go/15.6/home:ojkastl_buildservice:Branch_devel_languages_go.repo
zypper refresh
zypper install doggo