Hi,
I came to the conclusion that native build is the best option, but it could be improved by using a faster aarch64 board with SATA disk attachment. Anyone has a well supported model to suggest for that?
I've used a Geekworm / Suptronix X830 SATA & Pi enclosure quite a bit and wrote up some notes here:
https://www.reddit.com/r/raspberry_pi/comments/a6ndx0/review_of_suptronics_x830/I've used a Pi 4 in a Flirc case with USB storage to build aarch64, but before the Pi 4 I've used Pi 3s extensively. A Pi 3 with some cooling should give good results as long as it gets plenty of power. USB in NetBSD was flakey for a while, but lately in current it has been much more consistent.
John