diff --git a/hosts/nachtigall/apps/matrix.nix b/hosts/nachtigall/apps/matrix.nix
new file mode 100644
index 0000000..e903f3e
--- /dev/null
+++ b/hosts/nachtigall/apps/matrix.nix
@@ -0,0 +1,35 @@
+{ config, pkgs, ... }:
+{
+
+  services.caddy = { 
+  };
+
+  services.matrix-synapse = {
+    settings = {
+      server_name = "pub.solar";
+      public_baseurl = "https://matrix.pub.solar/";
+      database = {
+        name = "psycopg2";
+        args.host = "/run/postgresql";
+        args.user = "";
+        args.database = "";
+      };
+
+      app_service_config_files = [
+      ];
+    };
+
+    extraConfigFiles = [
+      # registration_shared_secret 
+      # mailer
+    ];
+
+    plugins = [
+      pkgs.matrix-synapse-plugins.matrix-synapse-shared-secret-auth
+    ];
+  };
+
+  services.postgresql = {
+    enable = true;
+  };
+}
diff --git a/hosts/nachtigall/apps/mautrix-telegram.nix b/hosts/nachtigall/apps/mautrix-telegram.nix
new file mode 100644
index 0000000..ac73eb3
--- /dev/null
+++ b/hosts/nachtigall/apps/mautrix-telegram.nix
@@ -0,0 +1,12 @@
+{ config, pkgs, ... }:
+{
+  servies.mautrix-telegram = {
+    enable = true;
+    environmentFile = ""; # Secrets
+    settings = {
+      appservice = {
+        database = "psql:////run/postgresql";
+      };
+    };
+  };
+};
diff --git a/hosts/nachtigall/default.nix b/hosts/nachtigall/default.nix
index 12e5229..8b51910 100644
--- a/hosts/nachtigall/default.nix
+++ b/hosts/nachtigall/default.nix
@@ -5,5 +5,6 @@
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
       ./configuration.nix
+      ./apps/matrix.nix
     ];
 }