Hehe. You are everywhere! 
I read all those 3 links, but it seems some of the important links no longer works? This is supposed to be the link to how things work: https://github.com/spark/docs/blob/libraries-docs/src/content/reference/libraries.md but all I get is a GitHub 404. Maybe someone forgot to make that public? It was linked from here: Libraries 2.0 installation guide