> We tried Deis briefly but ultimately decided that it was more complicated than we felt it needed to be.

That kind of reminds me of https://xkcd.com/927/

Sorry if that's not the case. I've also played briefly with Flynn and Deis and I haven't found anything that complicated that would need a whole rewrite and changing the entire approach. Moreover with Deis I can easily change providers (DO, AWS, Azure, etc.) and with Emprire I'm bound to ECS. At least that was my first impression, I have to read more.