diff --git a/flake.lock b/flake.lock
index 5fabb77..47b9b29 100644
--- a/flake.lock
+++ b/flake.lock
@@ -2,11 +2,11 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1743597898,
-        "narHash": "sha256-b5vow3e30Y/gQud8P65d36KEnF56ukED46bJYB5QVGI=",
+        "lastModified": 1746524425,
+        "narHash": "sha256-gCxWQCeQXYKDCW3y18HDo/aWbAtbjvljAkmyJBGRLOk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "3d9f74651d01b73e9c46d89bf17d5103e48ab307",
+        "rev": "1032a46ffe4ba4f56919a9643443a9a6791811ed",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
deleted file mode 100644
index 6d4643e..0000000
--- a/flake.nix
+++ /dev/null
@@ -1,80 +0,0 @@
-{
-  description = "Invoiceplane invoice template development shell";
-
-  inputs.nixpkgs.url = "nixpkgs/master";
-
-  outputs = { self, nixpkgs, ... }@inputs:
-  let
-    pkgs = nixpkgs.legacyPackages.x86_64-linux;
-    start =
-      pkgs.writeShellScriptBin "start" ''
-        set -e
-	export NIXPKGS_ALLOW_INSECURE=1
-        export QEMU_NET_OPTS="hostfwd=tcp::8080-:80"
-        ${pkgs.nixos-shell}/bin/nixos-shell --flake .
-       '';
-  in {
-    nixosConfigurations.vm = nixpkgs.lib.nixosSystem {
-      system = "x86_64-linux";
-      specialArgs.inputs = inputs;
-      pkgs = import nixpkgs {
-	overlays = [
-          (self: super: {
-            froide-govplan = super.froide-govplan.overrideAttrs (oldAttrs: rec {
-              src = ./.;
-	      #pkgs.fetchFromGitHub {
-              #  owner = "onny";
-              #  repo = "froide-govplan";
-              #  rev = "81697ce37cfdee7b5d0f667c50b13062ed9786c3";
-              #  hash = "sha256-ooHGlCKgZL+TMh6OtopKtbkV0MhT4udLCOIC+C3Ytdw=";
-              #};
-              postInstall = oldAttrs.postInstall + ''
-                rm -r $out/${pkgs.python3.sitePackages}/froide_govplan/templates
-                ln -sf /var/lib/froide-govplan/templates $out/${pkgs.python3.sitePackages}/froide_govplan/templates
-                cp -r froide_govplan/static $out/${pkgs.python3.sitePackages}/froide_govplan/
-              '';
-            });
-          })
-        ];
-      };
-      modules = [
-        ({ lib, config, pkgs, ... }: {
-
-          virtualisation = {
-            memorySize = 8000;
-            diskSize = 4096;
-            cores = 4;
-          };
-
-	  disabledModules = [ "services/web-apps/froide-govplan.nix" ];
-
-	  imports = [ ./froide-govplan.nix ];
-
-	  services.froide-govplan = {
-	    enable = true;
-	    package = pkgs.froide-govplan;
-	    settings = { 
-	      DEBUG = lib.mkForce true;
-	      CSRF_TRUSTED_ORIGINS = [ "http://localhost:8080" ];
-	    };
-	  };
-
-          nixos-shell.mounts.extraMounts = {
-            "/var/lib/froide-govplan/templates" = {
-               target = /home/onny/projects/froide-govplan/froide_govplan/templates;
-               cache = "none";
-            };
-          };
-
-          system.stateVersion = "25.05";
-          services.getty.autologinUser = "root";
-        })
-      ];
-    };
-
-    packages = { inherit start; };
-    defaultPackage.x86_64-linux = start;
-
-  };
-}
-
diff --git a/froide-govplan.nix b/froide-govplan.nix
index cd064c4..6e4f236 100644
--- a/froide-govplan.nix
+++ b/froide-govplan.nix
@@ -12,6 +12,7 @@ let
 
   pkg = cfg.package.overridePythonAttrs (old: {
     src = ./.;
+    dependencies = old.dependencies ++ [ cfg.package.python.pkgs.mastodon-py ];
     postInstall =
       old.postInstall
       + ''
@@ -196,7 +197,36 @@ in
           wantedBy = [ "multi-user.target" ];
           environment =
             {
-              PYTHONPATH = pkg.pythonPath;
+              PYTHONPATH = pkg.python.pkgs.makePythonPath (with pkg.python.pkgs; [
+
+    bleach
+    django-admin-sortable2
+    django-cms
+    django-filer
+    django-mfa3
+    django-mptt
+    django-oauth-toolkit
+    django-sekizai
+    django-tinymce
+    django-treebeard
+    djangocms-alias
+    # Downgrade to last working version
+    (toPythonModule (
+      pkgs.froide.overridePythonAttrs (prev: {
+        nativeBuildInputs = [ pkgs.makeBinaryWrapper ];
+        postBuild = "";
+        doCheck = false;
+        pnpmDeps = null;
+        src = prev.src.override {
+          rev = "a78a4054f9f37b0a5109a6d8cfbbda742f86a8ca";
+          hash = "sha256-gtOssbsVf3nG+pmLPgvh4685vHh2x+jlXiTjU+JhQa8=";
+        };
+      })
+    ))
+    psycopg
+	      mastodon-py
+	      (toPythonModule (pkg))
+	      ]);
               GDAL_LIBRARY_PATH = "${pkgs.gdal}/lib/libgdal.so";
               GEOS_LIBRARY_PATH = "${pkgs.geos}/lib/libgeos_c.so";
             }
diff --git a/froide_govplan/apps.py b/froide_govplan/apps.py
index 93dbf54..45ca5c5 100644
--- a/froide_govplan/apps.py
+++ b/froide_govplan/apps.py
@@ -1,7 +1,6 @@
 from django.apps import AppConfig
 from django.utils.translation import gettext_lazy as _
 
-
 class FroideGovPlanConfig(AppConfig):
     name = "froide_govplan"
     verbose_name = _("GovPlan App")
@@ -18,3 +17,5 @@ class FroideGovPlanConfig(AppConfig):
         api_router.register(
             r"governmentplan", GovernmentPlanViewSet, basename="governmentplan"
         )
+
+        from . import signals
\ No newline at end of file
diff --git a/froide_govplan/signals.py b/froide_govplan/signals.py
new file mode 100644
index 0000000..41c7daa
--- /dev/null
+++ b/froide_govplan/signals.py
@@ -0,0 +1,35 @@
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from django.conf import settings
+from django.db import transaction
+from mastodon import Mastodon
+from .models import GovernmentPlanUpdate, GovernmentPlan
+import re
+
+def strip_html_tags(text):
+    tag_re = re.compile(r'<[^>]+>')
+    return tag_re.sub('', text)
+
+def post_to_mastodon(text):
+    mastodon = Mastodon(
+        access_token=settings.MASTODON_ACCESS_TOKEN,
+        api_base_url=settings.MASTODON_API_BASE_URL
+    )
+    mastodon.status_post(text)
+
+@receiver(post_save, sender=GovernmentPlanUpdate)
+def send_mastodon_toot_update(sender, instance, created, **kwargs):
+    if created and instance.public:
+        transaction.on_commit(lambda: post_to_mastodon(
+            f"Neue Entwicklung im Verwaltungsvorhaben: {instance.plan.title}!\n\n"
+            f"{instance.title}: {strip_html_tags(instance.content)}\n\n"
+            f"Mehr Informationen: {instance.plan.reference} #karlsruhe"
+        ))
+
+@receiver(post_save, sender=GovernmentPlan)
+def send_mastodon_toot_plan(sender, instance, created, **kwargs):
+    if created and instance.public:
+        transaction.on_commit(lambda: post_to_mastodon(
+            f"Neues Verwaltungsvorhaben '{instance.title}' wurde aufgenommen.\n\n"
+            f"Mehr Informationen: {instance.reference} #karlsruhe"
+        ))
diff --git a/froide_govplan/static/froide_govplan/images/avatar.webp b/froide_govplan/static/froide_govplan/images/avatar.webp
new file mode 100644
index 0000000..d325898
Binary files /dev/null and b/froide_govplan/static/froide_govplan/images/avatar.webp differ
diff --git a/froide_govplan/static/froide_govplan/images/header.webp b/froide_govplan/static/froide_govplan/images/header.webp
new file mode 100644
index 0000000..0107082
Binary files /dev/null and b/froide_govplan/static/froide_govplan/images/header.webp differ