By completely standalone, I mean ESpixel stick or similar and solar panel with solar charge controller and battery. Yes, the ESP would need wifi data sent to it.
Completely stand alone for a true wireless individual prop, or a fence outline, or something that is further from your controllers and you don't want to run power and ethernet lines.
New here, relatively, so take with a grain of salt. I also seem to remember a lot of people on this board use wired controllers, so this idea maybe for naught. What about a Wifi-ESP based Solar/battery powered unit for a prop that might be in the far corner of your lot? Maybe not enough use...