Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSE:SupportTools:Factory/openSUSE_Tumbleweed/isv:SUSE:SupportTools:Factory.repo
zypper refresh
zypper install sassist
Para openSUSE Slowroll execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSE:SupportTools:Factory/openSUSE_Slowroll/isv:SUSE:SupportTools:Factory.repo
zypper refresh
zypper install sassist
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/isv:SUSE:SupportTools:Factory/15.6/isv:SUSE:SupportTools:Factory.repo
zypper refresh
zypper install sassist