dia from home:jamborm:gcc14fixes 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:jamborm:gcc14fixes/openSUSE_Tumbleweed/home:jamborm:gcc14fixes.repo zypper refresh zypper install dia