I haven't looked into this in detail but I'm excited for this. A company I used to work with had a tool a lot like this and it was very useful as it allowed us to build dashboards that could pull data from anything or join/transform data through code. Very very handy.

One thing I found annoying about our internal tool is I often found myself duplicating boilerplate code for simple things. Like, initialize a MySQL connection, run a query, and render it with a graphing library. I don't know what your tool does, but it would be nice if it had the ability to insert a "SQL query line graph" rather than making me write those 10 lines of python.