Disk encryption on NetBSD: achieving secrecy
NetBSD developer Nia Alarie has written a guide on how to set up a NetBSD system with disk encryption that's quite useful for those of us who deeply care about such a level of security. On top of that, the guide is also interesting if you just want to learn a bit more about how NetBSD works.
These are two threat models for which disk encryption
https://www.osnews.com/story/146397/disk-encryption-on-netbsd-achieving-secrecy/