Nice! (Full disclosure, I work with the author) I'm super glad you published this :) We've been using this where I work for about 6 months, and it's been super helpful. It's insanely fast to build, deliver, and modify admin workflows for our ops team.

It's surprisingly flexible, so we don't actually build out custom workflows in our main app unless they're either 1) very complex (think interactive sales pipeline), or 2) we've iterated on them in Runnable and want to pull them into the main UI.

Again, nice work!