Ah! This is me! Happy to take questions here or via email (edward.podojil@nytimes.com).
Any plans to open-source BQQL from the NYT? This looks like a really simple/lightweight DAG runner!
I'd love to, but no plans currently. It was originally a hack week project that just turned large scale. We're looking into broadening the scope a bit first: adding parent/child relationships so there's better query dependency support, and long run looking to tie into AirFlow so analysts are using this UI but really creating AirFlow jobs in the background.