$ docker run --rm -it docker-registry.wikimedia.org/wikimedia-buster:20250706
root@5aa48787507f:/# apt-get update
apt-get update
Ign:1 http://security.debian.org buster/updates InRelease
Err:2 http://security.debian.org buster/updates Release
  404  Not Found [IP: 151.101.66.132 80]
Get:3 http://apt.wikimedia.org/wikimedia buster-wikimedia InRelease [168 kB]
Ign:4 http://mirrors.wikimedia.org/debian buster InRelease
Ign:5 http://mirrors.wikimedia.org/debian buster-updates InRelease
Err:6 http://mirrors.wikimedia.org/debian buster Release
  404  Not Found [IP: 208.80.154.139 80]
Err:7 http://mirrors.wikimedia.org/debian buster-updates Release
  404  Not Found [IP: 208.80.154.139 80]
Get:8 http://apt.wikimedia.org/wikimedia buster-wikimedia/main amd64 Packages [91.9 kB]
Reading package lists... Done
E: The repository 'http://security.debian.org buster/updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://mirrors.wikimedia.org/debian buster Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://mirrors.wikimedia.org/debian buster-updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.