diff --git a/hosts/demeter/default.nix b/hosts/demeter/default.nix
index 53d1faf..c38ef0c 100644
--- a/hosts/demeter/default.nix
+++ b/hosts/demeter/default.nix
@@ -1,6 +1,7 @@
 {
   inputs,
   system,
+  osConfig,
   ...
 }:
 {
@@ -28,6 +29,7 @@
       home-manager.backupFileExtension = "backup";
       home-manager.extraSpecialArgs = {
         inherit inputs;
+        inherit osConfig;
       };
       home-manager.users.youwen = {
         imports = [
diff --git a/users/youwen/linux/home.nix b/users/youwen/linux/home.nix
index 9e976f5..192d778 100755
--- a/users/youwen/linux/home.nix
+++ b/users/youwen/linux/home.nix
@@ -1,6 +1,7 @@
 {
   inputs,
   pkgs,
+  osConfig,
   ...
 }:
 {
@@ -71,4 +72,13 @@
 
   # Let home Manager install and manage itself.
   programs.home-manager.enable = true;
+
+  programs.fish.functions = {
+    rebuild = ''doas nixos-rebuild --flake ~/.config/liminalOS\#${osConfig.networking.hostName} switch &| nom'';
+    nixos-update = ''
+      cd ~/.config/liminalOS
+      nix flake update --commit-lock-file
+      doas nixos-rebuild --flake ~/.config/liminalOS\#${osConfig.networking.hostName} switch &| nom
+    '';
+  };
 }