kcalc from home:epopov:branches:openSUSE:Factory project

For openSUSE Tumbleweed run the following as root:

zypper addrepo https://download.opensuse.org/repositories/home:epopov:branches:openSUSE:Factory/openSUSE_Tumbleweed/home:epopov:branches:openSUSE:Factory.repo
zypper refresh
zypper install kcalc