EndlessOS (mentioned in the article) is a Debian derivative based on OSTree, in development since around 2016 (maybe earlier).
You might find their forum (intended for end users, not much about development) or some of their repos useful:
You might find their forum (intended for end users, not much about development) or some of their repos useful:
I'd be awesome if there was a community effort around bringing the layering functionality and bootc enablement to all of Debian and then we could have our cake and eat it too!