diff --git a/configs/matterbridge.nix b/configs/matterbridge.nix
index bda4162..e7f61d5 100644
--- a/configs/matterbridge.nix
+++ b/configs/matterbridge.nix
@@ -11,6 +11,11 @@ let
       Server = "irc.freenode.net:6667";
       Nick = "tg_bridge";
     };
+    mumble.lassulus = {
+      Server = "lassul.us:64738";
+      Nick = "krebs_bridge";
+      SkipTLSVerify = true;
+    };
     gateway = [
       {
         name = "krebs-bridge";
@@ -24,6 +29,10 @@ let
             account = "telegram.kmein";
             channel = "-330372458";
           }
+          {
+            account = "mumble.lassulus";
+            channel = 6; # "nixos"
+          }
         ];
       }
       {
@@ -44,7 +53,17 @@ let
   };
 in
 {
-  nixpkgs.overlays = [ (import <niveum/overlays/toml.nix>) ];
+  nixpkgs.overlays = [
+    (import <niveum/overlays/toml.nix>)
+    (self: super: {
+      matterbridge = (import (super.fetchFromGitHub {
+        owner = "NixOS";
+        repo = "nixpkgs";
+        rev = "e45d91ee65db293a172ec506759d1248e40c35f5";
+        sha256 = "03cjs5xcx09lw0djyrx2kfakw7gkg4iqmy9w25azai62im39l30k";
+      }) {}).matterbridge;
+    })
+  ];
 
   services.matterbridge = {
     enable = true;
diff --git a/systems/makanek/configuration.nix b/systems/makanek/configuration.nix
index 401c813..5b8d434 100644
--- a/systems/makanek/configuration.nix
+++ b/systems/makanek/configuration.nix
@@ -13,6 +13,7 @@ in
     <niveum/configs/version.nix>
     <niveum/configs/urlwatch.nix>
     <niveum/configs/gitea.nix>
+    <niveum/configs/matterbridge.nix>
     <niveum/modules/retiolum.nix>
   ];
 
diff --git a/systems/toum/configuration.nix b/systems/toum/configuration.nix
index 16019e5..3f2a4f7 100644
--- a/systems/toum/configuration.nix
+++ b/systems/toum/configuration.nix
@@ -15,7 +15,6 @@ in {
     <niveum/configs/tmux.nix>
     <niveum/configs/version.nix>
     <niveum/configs/traadfri.nix>
-    <niveum/configs/matterbridge.nix>
     <niveum/modules/retiolum.nix>
     <niveum/modules/telegram-bot.nix>
     {