Libraries with only 1 depender are good candidates to just be merged with that depender, which helps to optimize the build and reduce the size of the graph.

Create an analyzer that will search the graph for such libraries and report a list of them.

Open Question:
Should there be a tag for libraries which we want to keep as in-degree 1 because it doesn't make sense to merge them or we anticipate them gaining more in-degree edges in the future? This tag could be used to filter or identify them in such a report generated from the proposed analyzer.