Definitely not dead, I just don't have all the time in the world to work on this anymore. But, good things are coming. ;)
While SDXL support has been in the main branch for a while now, there were still some issues that needed fixing, and hopefully, this addresses most of them.
It also brings a much-needed overhaul to the UI, including options to hide/show advanced settings, and a more streamlined and easy-to-follow "workflow".
Additionally, I've taken steps to ensure that installation goes more smoothly than it has in the past.
I'm sure there are still many issues that need resolution, but this should be a good start in that direction.