On October 4, 2020 I did a live stream together with Microsoft Azure MVP Martin Ehrnst to talk about more complex ARM templates. We covered topics such as parameters, variables, dependencies, functions, conditions and copy. And we gave a quick intro into Bicep, a new DSL that makes ARM templates authoring easier.
The live stream recording is now available here > https://www.youtube.com/watch?v=_GKpZMPyf88

Cheers, Marcel