That still at no point requires the application's team to make decisions about which two PCR zones to pick and which cells within it to pick, which [decision] c

That still at no point requires the application's team to make decisions about which two PCR zones to pick and which cells within it to pick, which [decision] can still be cleanly abstracted away, and would still be a mixing of unrelated concerns, and so your comments are still orthogonal to the point I was bringing up here. Edit: It might help to check out my comment here, where I clarify what a dev should vs shouldn't have to worry about: https://news.ycombinator.com/item?id=29085638 https://news.ycombinator.com/item?id=29085638