on github here, is the Unity source files, with a _Materialize-BatchMod folder inside, _Materialize-BatchMod is the built unity project, thats all you really need, you could drag and place it anywhere ...
Materialize is a program for converting images to materials. Unity 2019.4.40f1. IL2CPP module for Linux or win_x64. Remove Mono.Posix and Mono.WebBrowser from Assets/Plugins when building for win_x86 ...