I've come up with a new format of tutorials that I'm hoping Blender users enjoy. I've created two tutorials for the same topic, a "Beginner" edition, and a "Get on with it" edition.
The first topic I chose was creating Sand Dunes in Geometry Nodes:
Beginner Edition - walks through all the steps to get a fully configurable Geometry Nodes setup, and explains each of the relevant Geo Nodes concepts too.
“Get on with it” Edition - as the title suggests, no detailed explanations on concepts, just me doing what needs to be done in order to get to the final solution in real-time.