Thank ya'll, I'm looking for examples of all sorts. At a high level, it will contain a defined set of principles and outcomes, but at the low level, I'd love to end up with something akin to a step-by-step guide to deploy a backend service. So both the informative and functional, I feel pretty well persuaded 👌. I have a vision for what I think we need, but I'd love to see the various ways other organizations have drafted theirs.
Thanks @Andrew Fong, that's a popular article from searching this slack. I like that it lays out the principles with many of the concrete examples.