diff --git a/machines/configuration.nix b/machines/configuration.nix
index ac64523..c6af679 100644
--- a/machines/configuration.nix
+++ b/machines/configuration.nix
@@ -49,6 +49,7 @@ in
     # use your hardware- model from this list: https://github.com/NixOS/nixos-hardware/blob/master/flake.nix
     jupiter = nixosSystem {
       system = "x86_64-linux";
+      specialArgs = { inherit self; };
       modules = defaultModules ++ [
         # nixos-hardware.nixosModules.bmax-b7-power
         ./jupiter/configuration.nix
@@ -56,6 +57,7 @@ in
     };
     mibook = nixosSystem {
       system = "x86_64-linux";
+      specialArgs = { inherit self; };
       modules = defaultModules ++ [
         # nixos-hardware.nixosModules.mibook
         ./mibook/configuration.nix
diff --git a/modules/environments/home-assistant/default.nix b/modules/environments/home-assistant/default.nix
index e3e8fe4..d27393d 100644
--- a/modules/environments/home-assistant/default.nix
+++ b/modules/environments/home-assistant/default.nix
@@ -1,8 +1,9 @@
-# manages home automations 
+# manages home automations
 {
   config,
   lib,
   pkgs,
+  self,
   ...
 }:
 let
@@ -10,6 +11,12 @@ let
   hostName = config.networking.hostName;
 in
 {
+  imports = [
+    # services.openthread-border-router isn't in nixos-25.11; pull from
+    # nixpkgs-unstable. Package comes from the existing unstable overlay.
+    "${self.inputs.nixpkgs-unstable}/nixos/modules/services/home-automation/openthread-border-router.nix"
+  ];
+
   options.my.profiles.home-assistant = with lib; {
     enable = mkEnableOption "Home Automation";