Usage as a library/ in another app

Hi, this looks fantastic!

I would love to use this within another application (specifically, in https://pgkit.dev which is a work-in-progress set of Postgres tools I'm working on). Looking at the code/docs I don't see anything about this, but it presumably would be possible since the repo is already open-source.

Of course if not set up this way it might take a bit of refactoring, to extract out the parts that belong in a library and not the drawdb.app website etc. I would be very happy to help with this if interested.