What’s New in Apple Filesystems [pdf]
The read-only system volume really seems like a neat idea. It reminds me of the Transactional Server role in openSUSE where they make system upgrades as atomic as possible: <a href="https://news.opensuse.org/2018/05/15/transactional-updates-in-opensuse-leap-15/" rel="nofollow">https://news.opensuse.org/2018/05/15/transactional-updates-i...</a><p>That said, I don't understand the use case for firm links. Seems like the problem it's trying to solve can just be solved with simple mount points: mounting read-write /Users and /usr/local. Am I missing something?