Support for Munki installer_type "nopkg"
Munki has a pkginfo key for the installer type "nopkg". In a self-hosted Munki environment, this allows pkginfo files to be added to a repository that do not have an associated .pkg or .dmg file. You can read the Munki Project docs on the feature here: https://github.com/munki/munki/wiki/nopkgs
This has a variety of uses, because it allows Munki to be used as a general script execution tool. An admin can use any of Munki's installation conditions (package receipt, installs array, installcheck_script, or OnDemand) to then run a pre or postinstall script embedded in the pkginfo.
One example of how this is used is the venerable PrinterGenerator tool, which generates nopkg-style pkginfo files to enable printers to be installed and uninstalled via Managed Software Center.
Combined with Custom Attributes, nopkg support has the potential to greatly expand on the script execution capabilities offered to a SimpleMDM admin well beyond the current Scripts/Jobs feature.