Godot

With the assistance of Mr Anthony van Winkle, I've managed to get a simple attract slide functioning in Godot, and extended it to a (working) rudimentary carousel:

I'm back where I was a year ago, but with better options for the future!

I also don't want to say that it took 15 hours to get here, but it took 15 hours to get here. Most of that was sorting bugs in other people's software, and incompatibility issues. The actual install on a brand new computer, with lucky selections, would only take a few hours, including coding the Attract mode.

Anthony's Godot Install Information - Very Good