I looked at Balena for my project but being tied so tightly to their eco-system and not being able to use it with regular Raspbian really put me off. However, one feature that looked useful was the ability to have one service per container and have them tied all together with docker compose. Do you support that architecture or does Deviceplace manage a single docker container which must contain all the services bundled together?

I do agree that the openBalena install docs are not great. To me they sound like a bunch of separate hacks all stuck together.