diff --git a/flake.lock b/flake.lock
index f5feab0..610da8a 100644
--- a/flake.lock
+++ b/flake.lock
@@ -29,11 +29,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1768143854,
-        "narHash": "sha256-E5/kyPz4zAZn/lZdvqlF83jMgCWNxmqYjjWuadngCbk=",
+        "lastModified": 1788076475,
+        "narHash": "sha256-sD4UyILWAhk7aexE3YpDOdb71ZEeL+1/+LV05XIWCBo=",
         "owner": "kirelagin",
         "repo": "dns.nix",
-        "rev": "a97cf4156e9f044fe4bed5be531061000dfabb07",
+        "rev": "4710a34f2c36e7a0d634d7ba8fe2499d75f012a2",
         "type": "github"
       },
       "original": {
@@ -85,11 +85,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1781319724,
-        "narHash": "sha256-ZGuxexEMo4Xv28KJ0dX/m/PHN4oZIOnxHZpNTyrvx4M=",
+        "lastModified": 1787377438,
+        "narHash": "sha256-Sxu1NLTD/Ern6hFGLlZmtKCSct3YQXZI/lls8RE1XeM=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "8355f0a16b2dbb06a97959a918af5b239bbe05ae",
+        "rev": "65258d5c65a250189fde2e35f490d15e064c4c62",
         "type": "github"
       },
       "original": {
@@ -126,11 +126,11 @@
         "spectrum": "spectrum"
       },
       "locked": {
-        "lastModified": 1781389237,
-        "narHash": "sha256-Ne1/E5XNUq0gleaQz0vW5R4xf/0h/uEZ+bOW1aNjeQk=",
+        "lastModified": 1788263502,
+        "narHash": "sha256-gyVqW5U9wy6A8voJNu6SiSYTKDplo/MDl31x7FszWlk=",
         "owner": "astro",
         "repo": "microvm.nix",
-        "rev": "6ad601df0a07d9855c5e8f9b81135ecaf7c287eb",
+        "rev": "974d315e504e666eac4920d712e3ff6804dc1502",
         "type": "github"
       },
       "original": {
@@ -180,11 +180,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1781622756,
-        "narHash": "sha256-JrPh4M6S7aPsEE9tOENuZrxC6o2szSLlK+t4+nLke9s=",
+        "lastModified": 1788335262,
+        "narHash": "sha256-3jBEq8avfzlrsY4UpW4d5TOmm7ocseZfnitEJhqauyc=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "08018c72174a4df5657f8d94178ac69fb9c243e5",
+        "rev": "44d95795ee2d475b3d687325e26dcf4ca9104557",
         "type": "github"
       },
       "original": {
@@ -212,11 +212,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1781577229,
-        "narHash": "sha256-lrp67w8AulE9Ks53n27I45ADSzbOCn4H+CNW1Ck8B+8=",
+        "lastModified": 1788179007,
+        "narHash": "sha256-hn1oU2rue2SYK8dAr8+WNZWtbsz1S2W5mnHlSEuh3bo=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "567a49d1913ce81ac6e9582e3553dd90a955875f",
+        "rev": "34ab99075ac4f7e40cf037eef32cb1c360bb85e9",
         "type": "github"
       },
       "original": {
@@ -241,11 +241,11 @@
     },
     "nixpkgs_3": {
       "locked": {
-        "lastModified": 1781216227,
-        "narHash": "sha256-9mUW6gNwoN2SWc/l0fW4svPNOulXLl8ijqKyeSOGgJE=",
+        "lastModified": 1788187754,
+        "narHash": "sha256-bu1QxmXKmPuvBLN7bHP355OV9Qo13x9WCiRDH62CqRM=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "a0374025a863d007d98e3297f6aa46cc3141c2f0",
+        "rev": "5dfba6236110080a54247d6460bc2ff5dda939cc",
         "type": "github"
       },
       "original": {
@@ -280,11 +280,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1780547341,
-        "narHash": "sha256-Gq8KNx5A7hBB3uGJaj6eQfLDIz5YdLu92gqBcvHvoUo=",
+        "lastModified": 1788337237,
+        "narHash": "sha256-gkSH8VUtCo6hnysNmb9DbTuDepH2t5pv+QWjP75xKAk=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "9ed65852b6257fbeae4355bc24ecfea307ca759a",
+        "rev": "fbf759290e0cb0a98dfc813a4eb7d53ad1dacb57",
         "type": "github"
       },
       "original": {
@@ -296,11 +296,11 @@
     "spectrum": {
       "flake": false,
       "locked": {
-        "lastModified": 1778940603,
-        "narHash": "sha256-voSM8dZNlaOWN3kbYFky+FNY6fFQOEw0xF+ZMpZKkCQ=",
+        "lastModified": 1785761586,
+        "narHash": "sha256-MWOMVqJJERwjQGgRIv8d6rlEBqbLM3VZWxHkNKIIZNw=",
         "ref": "refs/heads/main",
-        "rev": "367dd227f539267eae2b62770b4c17b88ac8c1f1",
-        "revCount": 1265,
+        "rev": "a7762d6f54b40560dd5255ce902e6e6a5d980fe9",
+        "revCount": 1416,
         "type": "git",
         "url": "https://spectrum-os.org/git/spectrum"
       },
diff --git a/machines/pretalx/configuration.nix b/machines/pretalx/configuration.nix
index e59d26e..decc3bf 100644
--- a/machines/pretalx/configuration.nix
+++ b/machines/pretalx/configuration.nix
@@ -19,7 +19,9 @@ in
     useDHCP = false;
   };
 
+  disabledModules = [ "services/web-apps/pretalx.nix" ];
   imports = [
+    "${inputs.nixpkgs-unstable}/nixos/modules/services/web-apps/pretalx.nix"
     self.nixosModules.malobeo.metrics
     self.nixosModules.malobeo.users
     ../modules/sshd.nix
@@ -78,6 +80,7 @@ in
       config.sops.secrets.pretalx_smtp.path
     ];
     settings = {
+      redis.session = false;
       locale = {
         language_code = "de";
       };