I'm not sure where this "it's always one layer" thing is coming from, that's just not true. Nor do I see where I've said you should toss out RLS for a bespoke system - I see myself saying the opposite a few times.

> For you maybe, because you were taught it's scary or it just seems different?

Over a decade in computer security and software engineering. Nothing I'm saying is contentious. For some reason when I say "Having one boundary is bad" you say "There's only ever one boundary", which... is not true.