maybe chmod 0644 'apt/sources.list.d/hetzner-security-updates.list'
maybe chmod 0644 'apt/sources.list.d/hetzner-security-updates.list.2021-02-28.buster.bak'
maybe chmod 0644 'apt/sources.list.d/hetzner-security-updates.list.2021-10-31.bullseye.bak'
+maybe chmod 0644 'apt/sources.list.d/icinga.list'
maybe chmod 0644 'apt/sources.list.d/salt.list'
maybe chmod 0644 'apt/sources.list.d/salt.list.2021-04-08.buster.bak'
maybe chmod 0644 'apt/sources.list.d/salt.list.2023-09-19.bullseye.bak'
--- /dev/null
+deb [signed-by=/usr/share/keyrings/icinga-archive-keyring.gpg] https://packages.icinga.com/debian icinga-bookworm main
+deb-src [signed-by=/usr/share/keyrings/icinga-archive-keyring.gpg] https://packages.icinga.com/debian icinga-bookworm main