diff --git a/hosts/sakopc/configuration.nix b/hosts/sakopc/configuration.nix
index 1fc0707b..bdd16beb 100644
--- a/hosts/sakopc/configuration.nix
+++ b/hosts/sakopc/configuration.nix
@@ -94,6 +94,7 @@
         search.enable = true;
         switch-to-configuration-ng.enable = true;
         nh.enable = true;
+        tree.enable = true
       };
       zsh.enable = true;
       tmux.enable = true;
diff --git a/hosts/sakotop/configuration.nix b/hosts/sakotop/configuration.nix
index 6a0035e2..faa844d8 100644
--- a/hosts/sakotop/configuration.nix
+++ b/hosts/sakotop/configuration.nix
@@ -114,6 +114,8 @@
         switch-to-configuration-ng.enable = true;
         # better cli
         nh.enable = true;
+        # tree
+        tree.enable = true;
       };
       zsh.enable = true;
       tmux.enable = true;
diff --git a/modules/shell/nix/default.nix b/modules/shell/nix/default.nix
index 35a1c998..241c2721 100644
--- a/modules/shell/nix/default.nix
+++ b/modules/shell/nix/default.nix
@@ -4,5 +4,6 @@
     ./optimization.nix
     ./switch-to-configuration-ng.nix
     ./nh.nix
+    ./nix-tree.nix
   ];
 }
diff --git a/modules/shell/nix/nix-tree.nix b/modules/shell/nix/nix-tree.nix
new file mode 100644
index 00000000..e2d89957
--- /dev/null
+++ b/modules/shell/nix/nix-tree.nix
@@ -0,0 +1,14 @@
+{ inputs, options, config, lib, pkgs, ...}:
+let cfg = config.modules.shell.nix.tree;
+in
+{
+  options.modules.shell.nix.tree = {
+    enable = lib.mkEnableOption false;
+  };
+
+  config = lib.mkIf cfg.enable { 
+    users.users.sako.packages = with pkgs; [
+      nix-tree
+    ];
+  };
+}
diff --git a/modules/shell/zsh/default.nix b/modules/shell/zsh/default.nix
index 897ea075..50a39efc 100644
--- a/modules/shell/zsh/default.nix
+++ b/modules/shell/zsh/default.nix
@@ -41,6 +41,7 @@ in {
           shell = "nix shell";
           run = "nix run";
           cleanup = "sudo nix-collect-garbage --delete-older-than 3d && nix-collect-garbage -d";
+          current-system-tree = "nix-tree /nix/var/nix/profiles/system";
         };
         plugins = [
           {