Thus said Kevin Chadwick on Mon, 23 Mar 2026 13:15:04 -0000:

> I find exfat from packages/ports works across OpenBSD, Linux, Android,
> Windows and I believe Apple devices.

While useful,  exfat from ports  has a  major daylight saving  time bug.
When you mount it after a DST change, all the files show up with an hour
difference than  what they  should be.  That means if  you use  rsync to
backup or  synchronize changes, every  few months rsync will  think that
all of the files have changed  because the timestamps are off and resync
*everything*.

I tried  to submit a  bug to the developer  but it disappeared  for some
reason.