diff --git a/config/nas.nix b/config/nas.nix
index 6a74b232..663c473f 100644
--- a/config/nas.nix
+++ b/config/nas.nix
@@ -30,6 +30,7 @@
     ./services/woodpecker-agent.nix
     ./services/docker.nix
     ./users/remote-build.nix
+    ./services/heisenbridge.nix
   ];
 
   hardware.cpu.amd.updateMicrocode = true;
diff --git a/config/services/heisenbridge.nix b/config/services/heisenbridge.nix
new file mode 100644
index 00000000..b3aeaf8f
--- /dev/null
+++ b/config/services/heisenbridge.nix
@@ -0,0 +1,9 @@
+{...}: {
+  services.heisenbridge = {
+    port = 30435;
+    admin = "@lotte:chir.rs";
+    homeserver = "https://matrix.int.chir.rs";
+    enable = true;
+  };
+  services.matrix-synapse.settings.app_service_config_files = ["/var/lib/heisenbridge/registration.yaml"];
+}