For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:jiarenlu/openSUSE_Tumbleweed/home:jiarenlu.repo
zypper refresh
zypper install emacs
For openSUSE Slowroll run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:jiarenlu/openSUSE_Slowroll/home:jiarenlu.repo
zypper refresh
zypper install emacs
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:jiarenlu/15.6/home:jiarenlu.repo
zypper refresh
zypper install emacs