diff --git a/devices/hwang/default.nix b/devices/hwang/default.nix
new file mode 100644
index 00000000..c0e1eddd
--- /dev/null
+++ b/devices/hwang/default.nix
@@ -0,0 +1,18 @@
+# sudo nix build --store 'local?store=/data/gpfs01/hwang/.nix/store&state=/data/gpfs01/hwang/.nix/state&log=/data/gpfs01/hwang/.nix/log' .#hwang
+# sudo nix-store --store 'local?store=/data/gpfs01/hwang/.nix/store&state=/data/gpfs01/hwang/.nix/state&log=/data/gpfs01/hwang/.nix/log' -qR ./result | grep -Fxv -f <(ssh hwang find .nix/store -maxdepth 1 -exec realpath '{}' '\;') | sudo xargs nix-store --store 'local?store=/data/gpfs01/hwang/.nix/store&state=/data/gpfs01/hwang/.nix/state&log=/data/gpfs01/hwang/.nix/log' --export | pv > hwang.nar
+# cat hwang.nar | nix-store --import
+{ inputs, localLib }:
+let
+  pkgs = import inputs.nixpkgs (localLib.buildNixpkgsConfig
+  {
+    inputs = { inherit (inputs.nixpkgs) lib; topInputs = inputs; };
+    nixpkgs = { march = "haswell"; nixRoot = "/data/gpfs01/hwang/.nix"; nixos = false; };
+  });
+  hwang = pkgs.symlinkJoin
+  {
+    name = "hwang";
+    paths = with pkgs; [ pv localPackages.vasp.intel glibc ];
+    postBuild = "echo ${inputs.self.rev or "dirty"} > $out/.version";
+    passthru = { inherit pkgs; archive = pkgs.closureInfo { rootPaths = [ hwang.drvPath ]; }; };
+  };
+in hwang
diff --git a/devices/pc/default.nix b/devices/pc/default.nix
index 90adb817..6cbb3ba1 100644
--- a/devices/pc/default.nix
+++ b/devices/pc/default.nix
@@ -18,9 +18,10 @@ inputs:
               "/dev/mapper/tf1" =
               {
                 "/" = "/nix/tf";
-                "/nix/remote/jykang" = "/data/gpfs01/jykang/.nix";
                 "/nix/remote/xmuhk" = "/public/home/xmuhk/.nix";
+                "/nix/remote/jykang" = "/data/gpfs01/jykang/.nix";
                 "/nix/remote/wlin" = "/data/gpfs01/wlin/.nix";
+                "/nix/remote/hwang" = "/data/gpfs01/hwang/.nix";
               };
             };
             nfs."nas.ts.chn.moe:/" = { mountPoint = "/nix/remote/nas"; mountBeforeSwitch = false; };
diff --git a/flake/packages.nix b/flake/packages.nix
index 3d264141..96465cf3 100644
--- a/flake/packages.nix
+++ b/flake/packages.nix
@@ -29,6 +29,7 @@
   jykang = import ../devices/jykang { inherit inputs localLib; };
   wlin = import ../devices/wlin { inherit inputs localLib; };
   xmuhk = import ../devices/xmuhk { inherit inputs localLib; };
+  hwang = import ../devices/hwang { inherit inputs localLib; };
   src =
     let getDrv = x:
       if pkgs.lib.isDerivation x then [ x ]