For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Curiosity/openSUSE_Tumbleweed/home:Curiosity.repo
zypper refresh
zypper install libraw
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Curiosity/openSUSE_Factory/home:Curiosity.repo
zypper refresh
zypper install libraw
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Curiosity/15.6/home:Curiosity.repo
zypper refresh
zypper install libraw
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Curiosity/15.5/home:Curiosity.repo
zypper refresh
zypper install libraw
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Curiosity/15.4/home:Curiosity.repo
zypper refresh
zypper install libraw