diff --git a/programs/shell/default.nix b/programs/shell/default.nix
index dbf715d..8470d1b 100644
--- a/programs/shell/default.nix
+++ b/programs/shell/default.nix
@@ -70,10 +70,6 @@
         "EDITOR" = "emacs -nw";
         "VISUAL" = "emacs";
       };
-      shellAliases = {
-        nixos-switch = "sudo nixos-rebuild switch --flake flake:my-nixos --show-trace";
-        home-manager-switch = "nix run flake:my-home-manager -- switch --flake flake:my-home-manager --show-trace";
-      };
       initExtra = ''
         ## completion config and styling
         zstyle ':completion:*' matcher-list 'm:{a-z}={A-Za-z}'
diff --git a/scripts/default.nix b/scripts/default.nix
index 2a53469..d0ec350 100644
--- a/scripts/default.nix
+++ b/scripts/default.nix
@@ -1,5 +1,7 @@
 {pkgs, ...}: {
   home.packages = [
+    (pkgs.writeShellScriptBin "system-update-all"
+      (builtins.readFile ./shell/system-update-all.sh))
     (pkgs.writeShellScriptBin "git-sync-all"
       (builtins.readFile ./shell/git-sync-all.sh))
     (pkgs.writeShellScriptBin "rsync-local-config"
diff --git a/scripts/shell/system-update-all.sh b/scripts/shell/system-update-all.sh
new file mode 100644
index 0000000..fac7392
--- /dev/null
+++ b/scripts/shell/system-update-all.sh
@@ -0,0 +1,14 @@
+NIXOS_CONFIGURATION="/etc/nixos"
+HOME_MANAGER_CONFIGURATION="$HOME/.config/home-manager"
+
+(
+    cd "$NIXOS_CONFIGURATION" || exit 1
+    git pull --ff --ff-only || exit 1
+    sudo nixos-rebuild switch
+)
+
+(
+    cd "$HOME_MANAGER_CONFIGURATION" || exit 1
+    git pull --ff --ff-only || exit 1
+    home-manager switch
+)