Falcon controllers max out at 680 pixels per port for 40 fps use.
If planning to use expansion boards and such, why not look at the F48 differential controller and smart differential receivers? That will ease the wiring and the thinking a bit.
I will not use only one PSU, that is just me.
Have you checked the 101 manual yet, https://auschristmaslighting.com/wiki/AusChristmasLighting-101
It is various FB groups that discuss vendors and is also some here in the forum that are local to Aussie.
Welcome to ACL, @Btrezevant !!
I will second @uncledan and suggest the ACL 101 Manual as a great place to start https://auschristmaslighting.com/threads/auschristmaslighting-101-manual.1889/
The chat room is always a nice place to ask questions.
Years back I used ESP32's and ESP8236 with...
Hi, @johnalex1985
Be sure the sequencer output to lights is off. Also, on xSchedule, File tab Select: Switch to xLights folder; this action may requires you to recreate the playlist. Try and let us know....