diff --git a/config/hosts/public-web-static/virtualHosts/c3cat.de.nix b/config/hosts/public-web-static/virtualHosts/c3cat.de.nix
index 91d3a40..ff59fab 100644
--- a/config/hosts/public-web-static/virtualHosts/c3cat.de.nix
+++ b/config/hosts/public-web-static/virtualHosts/c3cat.de.nix
@@ -40,6 +40,10 @@ in {
         return = "302 https://c3cat.de$request_uri";
       };
 
+      locations."/manuals/eh22-rgb-ears" = {
+        return = "307 https://www.c3cat.de/rgb-ears.html";
+      };
+
       extraConfig = ''
         # Make use of the ngx_http_realip_module to set the $remote_addr and
         # $remote_port to the client address and client port, when using proxy
@@ -67,6 +71,10 @@ in {
 
       root = "${dataDir}";
 
+      locations."/manuals/eh22-rgb-ears" = {
+        return = "307 https://c3cat.de/rgb-ears.html";
+      };
+
       extraConfig = ''
         # Make use of the ngx_http_realip_module to set the $remote_addr and
         # $remote_port to the client address and client port, when using proxy
diff --git a/flake.lock b/flake.lock
index 3e957bb..00e5e12 100644
--- a/flake.lock
+++ b/flake.lock
@@ -95,11 +95,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1744518500,
-        "narHash": "sha256-lv52pnfiRGp5+xkZEgWr56DWiRgkMFXpiGba3eJ3krE=",
+        "lastModified": 1744669848,
+        "narHash": "sha256-pXyanHLUzLNd3MX9vsWG+6Z2hTU8niyphWstYEP3/GU=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "7e147a1ae90f0d4a374938cdc3df3cdaecb9d388",
+        "rev": "61154300d945f0b147b30d24ddcafa159148026a",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index d7bda34..2c34373 100644
--- a/flake.nix
+++ b/flake.nix
@@ -5,7 +5,7 @@
     # Use the NixOS small channels for nixpkgs.
     # https://nixos.org/manual/nixos/stable/#sec-upgrading
     # https://github.com/NixOS/nixpkgs
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11-small";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-24.11";
 
     # Add nixos-generators as an input.
     # See here: https://github.com/nix-community/nixos-generators#using-in-a-flake