crystal1.13 from home:uncomfyhalomacro 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:uncomfyhalomacro/openSUSE_Tumbleweed/home:uncomfyhalomacro.repo zypper refresh zypper install crystal1.13