In extras/packaging, the build_packages.sh script will build packages for supported platforms. The OS argument must be provided. The platform architecture (arm64, x86, …) is unable to be specified as packages will only be compiled and built on the platform that the build runs on.
Usage:
extras/packaging/build_packages.sh -a # -a or --all builds all supported platforms
extras/packaging/build_packages.sh -u # -u or --ubuntu builds all supported versions of Ubuntu
extras/packaging/build_packages.sh -u22 -d11 # -u22 builds ubuntu 22.04 and -d11 builds Debian 11