That makes perfect sense -- for a lot of the use-cases that I've experienced, I would have wanted to either hook the interface ('trigger button', 'view past run

That makes perfect sense -- for a lot of the use-cases that I've experienced, I would have wanted to either hook the interface ('trigger button', 'view past runs' or similar) into an existing app or just iframe-d in your solution to that piece. Sounds really interesting -- I think we'll give it a go.