diff --git a/tongfang/.bash_aliases b/tongfang/.bash_aliases
index 6ff7470..bd5b67c 100644
--- a/tongfang/.bash_aliases
+++ b/tongfang/.bash_aliases
@@ -4,3 +4,4 @@ alias nrebuild='sudo nixos-rebuild --use-remote-sudo switch'
 alias code='codium'
 alias ssh='ensure_ssh_key; ssh'
 alias rgf='rg --files | rg'
+alias rcd='ranger'
\ No newline at end of file
diff --git a/tongfang/nixos/flake.lock b/tongfang/nixos/flake.lock
index 36d7d4c..734f43a 100644
--- a/tongfang/nixos/flake.lock
+++ b/tongfang/nixos/flake.lock
@@ -14,11 +14,11 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1727348695,
-        "narHash": "sha256-J+PeFKSDV+pHL7ukkfpVzCOO7mBSrrpJ3svwBFABbhI=",
+        "lastModified": 1729880355,
+        "narHash": "sha256-RP+OQ6koQQLX5nw0NmcDrzvGL8HDLnyXt/jHhL1jwjM=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "1925c603f17fc89f4c8f6bf6f631a802ad85d784",
+        "rev": "18536bf04cd71abd345f9579158841376fdd0c5a",
         "type": "github"
       },
       "original": {
@@ -39,11 +39,11 @@
         "nixpkgs": "nixpkgs_2"
       },
       "locked": {
-        "lastModified": 1729457884,
-        "narHash": "sha256-oNuY6kQDfqpe1K6dEP7IIoegnSZvvv/WKD/6xcefncc=",
+        "lastModified": 1730078579,
+        "narHash": "sha256-4h6PF9HYAfrOn1tY70mxauwBTWM6JLTs2AfzaBqFUrg=",
         "owner": "0xc000022070",
         "repo": "zen-browser-flake",
-        "rev": "8146e6a761f9d51f1a93528709733685ff046e2c",
+        "rev": "d0d8b3ee1b1740e4ecfe1a4f11dbcde1cdb782aa",
         "type": "github"
       },
       "original": {
diff --git a/tongfang/nixos/packages.nix b/tongfang/nixos/packages.nix
index dc6f639..227fead 100644
--- a/tongfang/nixos/packages.nix
+++ b/tongfang/nixos/packages.nix
@@ -16,6 +16,7 @@ in
     curl
     fzf
     jq
+    ranger
     ripgrep
     networkmanager-openvpn
     (pkgs.writeTextDir "share/sddm/themes/breeze/theme.conf.user" ''
diff --git a/tongfang/nixos/users.nix b/tongfang/nixos/users.nix
index 63b60c9..c2c7ddc 100644
--- a/tongfang/nixos/users.nix
+++ b/tongfang/nixos/users.nix
@@ -17,6 +17,7 @@
       opentofu
       python3
       gnumake
+      gccgo
       _1password-gui
       # nodejs_22
       # corepack_22