RMr packages (both debian and rpm) are available from the repo:
https://packagecloud.io/o-ran-sc/master
Packages are built with each code merge and pushed to the repo. Both a run-time and development package are available; both need to be installed to build user applications on top of RMr.
It is our recommendation that these packages be used rather than building the source as the overall time to create a container and/or execution environment will be greatly reduced.