diff --git a/flake.lock b/flake.lock
index 44f32e4..801872b 100644
--- a/flake.lock
+++ b/flake.lock
@@ -181,11 +181,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1694469544,
-        "narHash": "sha256-eqZng5dZnAUyb7xXyFk5z871GY/++KVv3Gyld5mVh20=",
+        "lastModified": 1699783872,
+        "narHash": "sha256-4zTwLT2LL45Nmo6iwKB3ls3hWodVP9DiSWxki/oewWE=",
         "owner": "nix-community",
         "repo": "home-manager",
-        "rev": "5171f5ef654425e09d9c2100f856d887da595437",
+        "rev": "280721186ab75a76537713ec310306f0eba3e407",
         "type": "github"
       },
       "original": {
@@ -201,11 +201,11 @@
         "nixpkgs": "nixpkgs"
       },
       "locked": {
-        "lastModified": 1694481387,
-        "narHash": "sha256-1v5DT/8PmFl9UJHRq6BeMcDTSqXIYjVBilcVFt+vRN0=",
+        "lastModified": 1700011274,
+        "narHash": "sha256-NtZqLNEjgaCGowT2+HEeOoZsXqVSAZMA/vk2t0jikN0=",
         "owner": "nix-community",
         "repo": "nix-vscode-extensions",
-        "rev": "3901c1225944eda6c85f09a57c338f87f06748d2",
+        "rev": "a8c236477b4251ba739463de7e863a07b124fdd3",
         "type": "github"
       },
       "original": {
@@ -237,11 +237,11 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1694432324,
-        "narHash": "sha256-bo3Gv6Cp40vAXDBPi2XiDejzp/kyz65wZg4AnEWxAcY=",
+        "lastModified": 1699997707,
+        "narHash": "sha256-ugb+1TGoOqqiy3axyEZpfF6T4DQUGjfWZ3Htry1EfvI=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "ca41b8a227dd235b1b308217f116c7e6e84ad779",
+        "rev": "5689f3ebf899f644a1aabe8774d4f37eb2f6c2f9",
         "type": "github"
       },
       "original": {
@@ -269,11 +269,11 @@
     },
     "nixpkgs-stable": {
       "locked": {
-        "lastModified": 1694426803,
-        "narHash": "sha256-osusXQo0zkEqs502SNMffsKp1O9evpDM54A37MuyT2Q=",
+        "lastModified": 1699596684,
+        "narHash": "sha256-XSXP8zjBZJBVvpNb2WmY0eW8O2ce+sVyj1T0/iBRIvg=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9a74ffb2ca1fc91c6ccc48bd3f8cbc1501bf7b8a",
+        "rev": "da4024d0ead5d7820f6bd15147d3fe2a0c0cec73",
         "type": "github"
       },
       "original": {
@@ -285,11 +285,11 @@
     },
     "nixpkgs-stable_2": {
       "locked": {
-        "lastModified": 1693675694,
-        "narHash": "sha256-2pIOyQwGyy2FtFAUIb8YeKVmOCcPOTVphbAvmshudLE=",
+        "lastModified": 1699756042,
+        "narHash": "sha256-bHHjQQBsEPOxLL+klYU2lYshDnnWY12SewzQ7n5ab2M=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "5601118d39ca9105f8e7b39d4c221d3388c0419d",
+        "rev": "9502d0245983bb233da8083b55d60d96fd3c29ff",
         "type": "github"
       },
       "original": {
@@ -301,23 +301,27 @@
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1694538145,
-        "narHash": "sha256-/+X6c5mT4Yce7L21Dw+UynDomPQQya2WRaMAO7aotGY=",
-        "path": "/home/xin/nixpkgs",
-        "type": "path"
+        "lastModified": 1699781429,
+        "narHash": "sha256-UYefjidASiLORAjIvVsUHG6WBtRhM67kTjEY4XfZOFs=",
+        "owner": "nixos",
+        "repo": "nixpkgs",
+        "rev": "e44462d6021bfe23dfb24b775cc7c390844f773d",
+        "type": "github"
       },
       "original": {
-        "path": "/home/xin/nixpkgs",
-        "type": "path"
+        "owner": "nixos",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
       }
     },
     "nur": {
       "locked": {
-        "lastModified": 1694533535,
-        "narHash": "sha256-De7zRSSjw/UQmPxqUB5+acgE0kx9v7+w5mndk1M9clQ=",
+        "lastModified": 1700012630,
+        "narHash": "sha256-m+FOsAtH3He/QoiPqJ/MuF9aw0P/+47vZ3H24pB9MaI=",
         "owner": "nix-community",
         "repo": "NUR",
-        "rev": "140724f176a3a6d4b193b6da8eb7659d13f2fa9a",
+        "rev": "89fdcae74a069abd30b4d26ed043853b338ba88c",
         "type": "github"
       },
       "original": {
@@ -392,11 +396,11 @@
         "nixpkgs-stable": "nixpkgs-stable_2"
       },
       "locked": {
-        "lastModified": 1694495315,
-        "narHash": "sha256-sZEYXs9T1NVHZSSbMqBEtEm2PGa7dEDcx0ttQkArORc=",
+        "lastModified": 1699951338,
+        "narHash": "sha256-1GeczM7XfgHcYGYiYNcdwSFu3E62vmh4d7mffWZvyzE=",
         "owner": "Mic92",
         "repo": "sops-nix",
-        "rev": "ea208e55f8742fdcc0986b256bdfa8986f5e4415",
+        "rev": "0e3a94167dcd10a47b89141f35b2ff9e04b34c46",
         "type": "github"
       },
       "original": {
diff --git a/flake.nix b/flake.nix
index a6be7dc..d84f120 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,8 +1,7 @@
 {
   inputs = {
     # Pin nixpkgs to a specific commit
-    # nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
-    nixpkgs.url = "path:/home/xin/nixpkgs";
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     nixpkgs-stable.url = "github:nixos/nixpkgs/nixos-23.05";
 
     home-manager = {
diff --git a/home/xin/common/default.nix b/home/xin/common/default.nix
index da76694..088d6a6 100644
--- a/home/xin/common/default.nix
+++ b/home/xin/common/default.nix
@@ -9,8 +9,6 @@
   nix.settings = {
     experimental-features = [ "nix-command" "flakes" ];
     auto-optimise-store = true;
-    substituters = "https://cache.nixos.org https://mirrors.ustc.edu.cn/nix-channels/store https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store https://cache.nixos.org/ https://cuda-maintainers.cachix.org";
-    trusted-public-keys = "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= cuda-maintainers.cachix.org-1:0dq3bujKpuEPMCX6U4WylrUDZ9JyUG0VpVZa7CNfq5E=";
   };
 
 
@@ -28,7 +26,6 @@
     tealdeer
     neofetch
     rclone
-    clash
 
     inetutils
   ];
diff --git a/machines/calcite/configuration.nix b/machines/calcite/configuration.nix
index a5d45f8..ffc1a28 100644
--- a/machines/calcite/configuration.nix
+++ b/machines/calcite/configuration.nix
@@ -7,7 +7,6 @@
       ./hardware-configuration.nix
       ./network.nix
       ../sops.nix
-      ../clash.nix
     ];
 
   # Bootloader.
diff --git a/machines/clash.nix b/machines/clash.nix
deleted file mode 100644
index e6c76ca..0000000
--- a/machines/clash.nix
+++ /dev/null
@@ -1,34 +0,0 @@
-{ config, lib, pkgs, ... }:
-{
-  sops = {
-    secrets.clash_subscription_link = { 
-      owner = "xin";
-    };
-  };
-
-  systemd.timers."clash-config-update" = {
-    wantedBy = [ "timers.target" ];
-    timerConfig = {
-      OnUnitActiveSec = "1d";
-      Unit = "clash-config-update.service";
-    };
-  };
-
-  systemd.services."clash-config-update" = {
-    script = ''
-      ${pkgs.curl}/bin/curl $(${pkgs.coreutils}/bin/cat ${config.sops.secrets.clash_subscription_link.path}) > /tmp/config.yaml && mv /tmp/config.yaml /home/xin/.config/clash/ 
-    '';
-    serviceConfig = {
-      Type = "oneshot";
-      User= "xin";
-    };
-  };
-
-  systemd.services.clash = {
-    enable = true;
-    after = [ "network.target" ];
-    wantedBy = [ "multi-user.target" ];
-    serviceConfig.ExecStart = "${pkgs.clash}/bin/clash -d /home/xin/.config/clash";
-  };
-  
-}
diff --git a/machines/raspite/configuration.nix b/machines/raspite/configuration.nix
index b178e9e..72b7978 100644
--- a/machines/raspite/configuration.nix
+++ b/machines/raspite/configuration.nix
@@ -10,13 +10,11 @@
   ];
   
   imports = [
-    ../clash.nix
     ../sops.nix
   ];
 
   environment.systemPackages = with pkgs; [
     git
-    clash
   ];
 
   # Use mirror for binary cache
@@ -59,4 +57,4 @@
     hashedPassword = "$y$j9T$KEOMZBlXtudOYWq/elAdI.$Vd3X8rjEplbuRBeZPp.8/gpL3zthpBNjhBR47wFc8D4";
   };
   
-}
\ No newline at end of file
+}