Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:sbradnick/openSUSE_Tumbleweed/home:sbradnick.repo
zypper refresh
zypper install lite-xl-plugin-manager
Для openSUSE Factory standard запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:sbradnick/openSUSE_Factory_standard/home:sbradnick.repo
zypper refresh
zypper install lite-xl-plugin-manager
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:sbradnick/16.0/home:sbradnick.repo
zypper refresh
zypper install lite-xl-plugin-manager
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:sbradnick/15.6/home:sbradnick.repo
zypper refresh
zypper install lite-xl-plugin-manager
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:sbradnick/15.5/home:sbradnick.repo
zypper refresh
zypper install lite-xl-plugin-manager