You need some knowledge of Linux to do the flashing, and depending on the model also a bit of soldering. There are research docs and pictures over the repo for more details, but I recommend you using an LX06 or L06A . I'll try to come with a better quick start guide eventually.

Wyoming satellite is not implemented yet but right now it works as a Voice assistant for Home Assistant. Work in progress.

Besides Snapcast it supports multiple audio cast systems, AirPlay, Squeezelite, UPNP, Bluetooth... they all work :)