are there not-known locations where binary packages are published?

[Greg Troxel <gdt%lexort.com@localhost>]

ftp.netbsd.org contains binary packages built from pkgsrc, for a subset
(where The NetBSD Foundation or an individual developer has done builds)
of recent quarterly branches, supported operating systems and CPU types.

Builds in other locations are pointed to in a top-level SEE_ALSO file,
and SEE_ALSO files for various operating systems:

  https://ftp.netbsd.org/pub/pkgsrc/packages/SEE_ALSO
  https://ftp.netbsd.org/pub/pkgsrc/packages/Linux/SEE_ALSO
  https://ftp.netbsd.org/pub/pkgsrc/packages/macOS/SEE_ALSO
  https://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/SEE_ALSO
  https://ftp.netbsd.org/pub/pkgsrc/packages/SmartOS/SEE_ALSO

which can be summarized as

  https://archive.netbsd.org/
    Builds that have aged out of ftp.netbsd.org, because the branch is
    too old or the OS version is no longer reeceiving security updates.

  Builds from smartos.org, by jperkin@, for 4 operating systems (x86-64
  for all 4, and also arm64 for macOS).

If you are aware of other locations that regularly build and publish
binary packages, please email me a link so that I can consider it for
inclusion into SEE_ALSO.