# Ref. https://manpages.debian.org/stable/apt/sources.list.5.en.html#DEB822-STYLE_FORMAT
# NOTE: apt 1.5+ supports https natively (no apt-transport-https needed)
# UPDATE: Using https *and* caching proxy proved to be too problematic.
#         Therefore we now use SOLELY http (not https).
# NOTE: intel-microcode & amd64-microcode needs contrib & non-free!
# FIXME: is it safe to place deb.debian.org and security.debian.org together?
# UPDATE: SOLELY deb.debian.org (no security.debian.org),
#         which is identical to security-cdn.debian.org,
#         which is identical to security.debian.org (mostly) due to SRV records.
Types: deb
URIs: http://deb.debian.org/debian-security
Suites:
  bullseye-security
Components: main contrib non-free

Types: deb
URIs: http://deb.debian.org/debian
Suites:
  bullseye
  bullseye-updates
  bullseye-proposed-updates
  bullseye-backports
#  testing
#  unstable
#  experimental
Components: main contrib non-free