For openSUSE Leap 42.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:TheTiger/openSUSE_Leap_42.3/home:TheTiger.repo
zypper refresh
zypper install fontconfig-infinality
For openSUSE Leap 42.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:TheTiger/openSUSE_Leap_42.2/home:TheTiger.repo
zypper refresh
zypper install fontconfig-infinality
For openSUSE Leap 42.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:TheTiger/openSUSE_Leap_42.1/home:TheTiger.repo
zypper refresh
zypper install fontconfig-infinality
For openSUSE Leap 15.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:TheTiger/openSUSE_Leap_15.0/home:TheTiger.repo
zypper refresh
zypper install fontconfig-infinality