A simple modification for a cheap ESP8266 programmer.
How to configure the Huzzah with the Neopixel FeatherWing as a lantern to use with LanternScape
How to make a build and program an ESP-01s and driver board to use with LanternScape
As LanternScape only really need the WLED firmware and the desktop app there are lots more articles on Instructables that you may find useful.
LanternScape is in no way affiliates with Instructables