Sunshine does not currently have a method to package rpm.

If you have experience with packaging rpm and would like to contribute a PR would be very appreciated!

Edit: Should we consider using CPack? https://cmake.org/cmake/help/latest/module/CPack.html
Here is an example: https://github.com/docopt/docopt.cpp/blob/6f5de76970be94a6f1e4556d1716593100e285d2/CMakeLists.txt#L136