diff --git a/home/files/containers/registries.conf b/home/files/containers/registries.conf
new file mode 100644
index 0000000..d44d892
--- /dev/null
+++ b/home/files/containers/registries.conf
@@ -0,0 +1 @@
+unqualified-search-registries = ["docker.io"]
diff --git a/home/programs/ssh-match-blocks.nix b/home/programs/ssh-match-blocks.nix
index 1ac2243..4f262e0 100644
Binary files a/home/programs/ssh-match-blocks.nix and b/home/programs/ssh-match-blocks.nix differ
diff --git a/home/xdg.nix b/home/xdg.nix
index 0e244a6..53b623b 100644
--- a/home/xdg.nix
+++ b/home/xdg.nix
@@ -30,6 +30,8 @@
     "composer/update-channel".text = "stable";
     "composer/auth.json".source = ./files/composer/auth.json;
 
+    "containers/registries.conf".source = ./files/containers/registries.conf;
+
     # Handbrake
     "ghb/preferences.json".source = ./files/ghb/preferences.json;
     "ghb/presets.json".source = ./files/ghb/presets.json;
diff --git a/projects/sac/collections-shell.nix b/projects/sac/collections-shell.nix
new file mode 100644
index 0000000..5873218
Binary files /dev/null and b/projects/sac/collections-shell.nix differ