Right now the plugin doesn't have the proper plugin directory structure, so when it's installed through the in-editor Assetlib, the files are scattered around the project's root directory and Godot doesn't detect the plugin. All the files should be placed inside addons/[addon-name]/, as is the case with other addons. I hope you find the time to do this, as this is a really exciting add-on that I think a lot of people would be interested in using.
Right now the plugin doesn't have the proper plugin directory structure, so when it's installed through the in-editor Assetlib, the files are scattered around the project's root directory and Godot doesn't detect the plugin. All the files should be placed inside
addons/[addon-name]/, as is the case with other addons. I hope you find the time to do this, as this is a really exciting add-on that I think a lot of people would be interested in using.