libticalcs2 from home:Vogtinator:tilparm project
Select Your Operating System
Add repository and install manually
For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:Vogtinator:tilparm/openSUSE_Tumbleweed/home:Vogtinator:tilparm.repo zypper refresh zypper install libticalcs2