Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:glaffite/openSUSE_Tumbleweed/home:glaffite.repo
zypper refresh
zypper install xtrkcad
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:glaffite/16.0/home:glaffite.repo
zypper refresh
zypper install xtrkcad
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:glaffite/15.6/home:glaffite.repo
zypper refresh
zypper install xtrkcad