diff --git a/home/xin/calcite.nix b/home/xin/calcite.nix
index eecb258..9ba1359 100644
--- a/home/xin/calcite.nix
+++ b/home/xin/calcite.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, ... }:
+{ config, pkgs, ... }@inputs:
 {
   imports = [
     ./common
@@ -17,6 +17,7 @@
     primary = true;
     address = "lixinyang411@gmail.com";
     flavor = "gmail.com";
+    realName = "Xinyang Li";
   };
 
   accounts.email.accounts.whu = {
@@ -32,13 +33,25 @@
     remmina
   ];
 
+  # Theme
+  catppuccin = {
+    enable = true;
+    flavor = "mocha";
+  };
+  xdg.enable = true;
+
+  i18n.inputMethod = {
+    enabled = "fcitx5";
+    fcitx5.addons = with pkgs; [ fcitx5-rime ];
+  };
+
   custom-hm = {
     alacritty = { enable = true; };
     direnv = { enable = true; };
     fish = { enable = true; };
     git = { enable = true; signing.enable = true; };
     neovim = { enable = true; };
-    vscode = { enable = true; };
+    vscode = { enable = true; languages = { cxx = true; python = true; scala = true; latex = true; }; };
     zellij = { enable = true; };
   };
 }
diff --git a/home/xin/common/default.nix b/home/xin/common/default.nix
index 0e0677c..d4bc579 100644
--- a/home/xin/common/default.nix
+++ b/home/xin/common/default.nix
@@ -19,4 +19,8 @@
 
     inetutils
   ];
+  nix.extraOptions = ''
+    extra-substituters = https://nix-community.cachix.org
+    extra-trusted-public-keys = nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=
+  '';
 }