Apache Superset is a very popular open-source project that provides users with an exploration and visualization platform for their (big or not-so-big) data. For instance, it can be used to create line charts, but also advanced geospatial charts and dashboards that support queries via SQL Lab.

In addition, Superset became a Top-Level Project (TLP) of the Apache Software Foundation in January of this year, with users that include American Express, Dremio, Lyft, Twitter, Udemy, Zalando, and many others.
As for Beauchemin, he is now the founder and CEO of Preset, an open analytics data platform powered by Superset, offering fully-hosted managed solution Preset Cloud as well as self-managed option Preset Enterprise.
To learn more, check out this Data Council talk by Max Beauchemin on the history and anatomy of Apache Superset. You can also follow @ApacheSuperset on Twitter.