+ PKG_PATH=/nfs/packages/NetBSD/trunk/x86_64/All /usr/tools/sbin/pkg_add -K /usr/pkg/pkgdb digest-20220214 x11-links-1.35 spice-protocol-0.14.3nb1 ninja-build-1.11.1 py310-sphinx-5.3.0 py310-sphinx-rtd-theme-0.4.3nb1 glib2-tools-2.74.5 python310-3.10.9 mktools-20220614 bison-3.8.2nb1 perl-5.36.0 pkgconf-1.9.4 cwrappers-20220403 checkperms-1.12 jack-1.9.21nb1 SDL2-2.26.2 libxkbcommon-1.5.0 spice-server-0.14.3nb1 glib2-2.74.5 libiscsi-1.19.0 jemalloc-5.3.0 lzo-2.10 zstd-1.5.2 snappy-1.1.9 hicolor-icon-theme-0.17nb1 png-1.6.39 libslirp-4.7.0nb1 libgcrypt-1.10.1 curl-7.87.0 jpeg-9e
libffi-3.4.4: registering info file /usr/pkg/info/libffi.info
pkg_add: package `python310-3.10.9' was already installed as dependency, now marked as installed manually
pkg_add: package `mktools-20220614' already recorded as installed
m4-1.4.19nb1: registering info file /usr/pkg/info/m4.info
gettext-lib-0.21.1: copying /usr/pkg/share/examples/gettext/locale.alias to /usr/pkg/share/locale/locale.alias
gettext-tools-0.21.1: registering info file /usr/pkg/info/gettext.info
gettext-tools-0.21.1: registering info file /usr/pkg/info/libtextstyle.info
bison-3.8.2nb1: registering info file /usr/pkg/info/bison.info
pkg_add: package `cwrappers-20220403' already recorded as installed
fftw-3.3.10nb1: registering info file /usr/pkg/info/fftw3.info
libgpg-error-1.46: registering info file /usr/pkg/info/gpgrt.info
libgcrypt-1.10.1: registering info file /usr/pkg/info/gcrypt.info
xmlcatmgr-2.2nb1: copying /usr/pkg/share/examples/xmlcatmgr/catalog.etc.sgml to /usr/pkg/etc/sgml/catalog
xmlcatmgr-2.2nb1: copying /usr/pkg/share/examples/xmlcatmgr/catalog.etc.xml to /usr/pkg/etc/xml/catalog
xmlcatmgr-2.2nb1: copying /usr/pkg/share/examples/xmlcatmgr/catalog.share.sgml to /usr/pkg/share/sgml/catalog
xmlcatmgr-2.2nb1: copying /usr/pkg/share/examples/xmlcatmgr/catalog.share.xml to /usr/pkg/share/xml/catalog
pkg_add: package `libxkbcommon-1.5.0' was already installed as dependency, now marked as installed manually
No schema files found: doing nothing.
pkg_add: package `glib2-2.74.5' was already installed as dependency, now marked as installed manually
pkg_add: package `libgcrypt-1.10.1' was already installed as dependency, now marked as installed manually
libunistring-1.1: registering info file /usr/pkg/info/libunistring.info
libidn2-2.3.4: registering info file /usr/pkg/info/libidn2.info
pkg_add: package `jpeg-9e' 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

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