diff --git a/flake.lock b/flake.lock
index 290373d8..189f5679 100644
--- a/flake.lock
+++ b/flake.lock
@@ -38,6 +38,21 @@
       }
     },
     "flake-utils": {
+      "locked": {
+        "lastModified": 1638122382,
+        "narHash": "sha256-sQzZzAbvKEqN9s0bzWuYmRaA03v40gaJ4+iL1LXjaeI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "74f7e4319258e287b0f9cb95426c9853b282730b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
       "inputs": {
         "systems": "systems"
       },
@@ -119,7 +134,7 @@
     },
     "lib-aggregate": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "flake-utils": "flake-utils_2",
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
@@ -155,6 +170,27 @@
         "type": "github"
       }
     },
+    "nixos-cn": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1682818384,
+        "narHash": "sha256-l8jh9BQj6nfjPDYGyrZkZwX1GaOqBX+pBHU+7fFZU3w=",
+        "owner": "nixos-cn",
+        "repo": "flakes",
+        "rev": "2d475ec68cca251ef6c6c69a9224db5c264c5e5b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nixos-cn",
+        "repo": "flakes",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1683014792,
@@ -259,6 +295,7 @@
       "inputs": {
         "home-manager": "home-manager",
         "hyprland": "hyprland",
+        "nixos-cn": "nixos-cn",
         "nixpkgs": "nixpkgs_2",
         "nixpkgs-wayland": "nixpkgs-wayland"
       }
diff --git a/flake.nix b/flake.nix
index fb137159..adfa7d0c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -46,7 +46,7 @@
     nixpkgs-wayland  = { url = "github:nix-community/nixpkgs-wayland"; };
 
     # nixos-cn 提供了一些国内常用的程序包，如 qq wechat dingtalk 等
-    inputs.nixos-cn = {
+    nixos-cn = {
       url = "github:nixos-cn/flakes";
       # 强制 nixos-cn 和该 flake 使用相同版本的 nixpkgs
       inputs.nixpkgs.follows = "nixpkgs";
@@ -60,6 +60,7 @@
       self,
       nixpkgs,
       home-manager,
+      nixos-cn,
       ...
   }: {
     # 名为 nixosConfigurations 的 outputs 会在执行 `nixos-rebuild switch --flake .` 时被使用
diff --git a/home/programs/browsers.nix b/home/programs/browsers.nix
index 89205d68..6166bd2b 100644
--- a/home/programs/browsers.nix
+++ b/home/programs/browsers.nix
@@ -8,7 +8,7 @@
     firefox-wayland
   ];
 
-  programs = {
+  programs =
     let commandLineArgs = [ "--enable-wayland-ime" "--ozone-platform=wayland" ];
     in {
       chromium = {
@@ -20,5 +20,4 @@
         inherit commandLineArgs;
       };
     };
-  };
-}
\ No newline at end of file
+}
diff --git a/home/programs/common.nix b/home/programs/common.nix
index c589f05f..b22f5daf 100644
--- a/home/programs/common.nix
+++ b/home/programs/common.nix
@@ -120,7 +120,6 @@
     jq.enable = true;    # A lightweight and flexible command-line JSON processor
     ssh.enable = true;
     aria2.enable = true;
-    adb.enable = true;
 
     skim = {
       enable = true;
@@ -144,4 +143,4 @@
     # auto mount usb drives
     udiskie.enable = true;
   };
-}
\ No newline at end of file
+}
diff --git a/home/programs/xdg.nix b/home/programs/xdg.nix
index e009f85b..e9962228 100644
--- a/home/programs/xdg.nix
+++ b/home/programs/xdg.nix
@@ -1,4 +1,4 @@
-{config, ...}: let
+{config, pkgs, ...}: let
   browser = ["firefox.desktop"];
 
   # XDG MIME types
@@ -44,14 +44,5 @@ in {
       };
     };
 
-    # https://github.com/flatpak/xdg-desktop-portal
-    # enable wayland wlroots support
-    portal = {
-      enable = true;
-      extraPortals = with pkgs; [
-        xdg-desktop-portal-wlr
-        xdg-desktop-portal-gtk
-      ];
-    };
   };
-}
\ No newline at end of file
+}