vortex-devel-rpm from home:VortexOBS project
Select Your Operating System
Add repository and install manually
For AlmaLinux 9 run the following as root:
cd /etc/yum.repos.d/ wget https://download.opensuse.org/repositories/home:VortexOBS/AlmaLinux_9/home:VortexOBS.repo yum install vortex-devel-rpm