diff --git a/flake.nix b/flake.nix
index cbb4e466..64f868fb 100644
--- a/flake.nix
+++ b/flake.nix
@@ -99,6 +99,9 @@
     ...
   }: let
     username = "ryan";
+    userfullname = "Ryan Yin";
+    useremail = "xiaoyin_c@qq.com";
+
     x64_system = "x86_64-linux";
     x64_darwin = "x86_64-darwin";
     allSystems = [x64_system x64_darwin];
@@ -150,7 +153,7 @@
       system = x64_system;
       specialArgs =
         {
-          inherit username;
+          inherit username userfullname useremail;
           # use unstable branch for some packages to get the latest updates
           pkgs-unstable = import nixpkgs-unstable {
             system = x64_system; # refer the `system` parameter form outer scope recursively
@@ -199,6 +202,7 @@
       system = x64_darwin;
       specialArgs =
         {
+          inherit username userfullname useremail;
           # use unstable branch for some packages to get the latest updates
           pkgs-unstable = import nixpkgs-unstable {
             inherit system; # refer the `system` parameter form outer scope recursively
diff --git a/home/base/server/git.nix b/home/base/server/git.nix
index e901357f..b136f828 100644
--- a/home/base/server/git.nix
+++ b/home/base/server/git.nix
@@ -2,6 +2,9 @@
   config,
   lib,
   pkgs,
+
+  userfullname,
+  useremail,
   ...
 }: {
   # `programs.git` will generate the config file: ~/.config/git/config
@@ -16,8 +19,8 @@
     enable = true;
     lfs.enable = true;
 
-    userName = "Ryan Yin";
-    userEmail = "xiaoyin_c@qq.com";
+    userName = userfullname;
+    userEmail = useremail;
 
     includes = [
       {