pkg_add: package `digest-20220214' already recorded as installed
pkg_add: package `mktools-20220614' already recorded as installed
gmake-4.4: registering info file /usr/pkg/info/make.info
pkg_add: package `cwrappers-20220403' already recorded as installed
pkg_add: package `checkperms-1.12' already recorded as installed
libffi-3.4.4: registering info file /usr/pkg/info/libffi.info
fftw-3.3.10nb1: registering info file /usr/pkg/info/fftw3.info
pkg_add: package `libsamplerate-0.2.2nb3' was already installed as dependency, now marked as installed manually
pkg_add: package `fftw-3.3.10nb1' was already installed as dependency, now marked as installed manually
===========================================================================
$NetBSD: MESSAGE.NetBSD,v 1.3 2021/09/08 19:19:19 nia Exp $

To start JACK on NetBSD:

$ jackd -Sr -d sun

If you have an external USB mic:

$ jackd -Sr -d sun -P /dev/audio -C /dev/audio1 -i 1

===========================================================================