Basically anything that needs minimaps but doesn't have a unitsync library attached, or doesn't know how, uses this, or Zero-Ks minimaps.
i talked to licho, zero-k seemed to use it. i don't know if other lobbies or so did use it...
Its unfortunate that unitsync passes raw image data and doesn't provide an API for writing out minimaps to files, I remember having to implement one for the JNI bindings but it was removed when JNI was removed, without it pulling minimaps out of unitsync became 20x more difficult.
to get images (and/or improve the code to extract more metadata if needed: https://github.com/springfiles/upq