Thank you for the example of SQLite being used with Scribble. I was playing a little bit with the sqlite interface, but using it rather naively to pass queries and return values.

Not quite sure I have the Racket chops to implement something like a data.frame abstraction over an in-memory SQLite database (or even dplyr style query construction). Maybe a project for after I get off Hacker News and finish up a couple of articles that have needed finishing...