To be clear: these changes should be totally invisible to most or all of our end users. We'll still be packaging our server-side applications as rpms/debs/etc., and none of the client-side tools are changing at all as a result of this. So you won't need to learn any new syntax. If you're using PuppetDB, then you're already using this new technology stack; we're just making it more modular so that we can re-use it in other places.