Dashboard for analytics

[cosenal]

As a product owner of the Metriq website, I want to have a dashboard reporting on analytics on metriq.info, so that I can track trends in user acquisition and engagement. This dashboard would report on all the metrics that are not on Google Analytics (e.g., number of submissions per week, number of «Follow» actions, ...)

Original set of queries by @WrathfulSpatula:
https://docs.google.com/document/d/144jFDNbp9CtxYig-Go1OxGZWrBAIJmka6zFn0zKxXQY/edit?usp=sharing

Implementation suggestion:
Use a tool like https://superset.apache.org/, which is easy to manage and can be connected to the postgres db.