diff --git a/configuration/common/hexchen.nix b/configuration/common/hexchen.nix
index 26d351f..48199ea 100644
--- a/configuration/common/hexchen.nix
+++ b/configuration/common/hexchen.nix
@@ -40,6 +40,13 @@
       enable = true;
       userName = "hexchen";
       userEmail = "hexchen@lilwit.ch";
+      signing = {
+        key = "B1DF5EAD";
+        signByDefault = true;
+      };
+      extraConfig = {
+        pull.rebase = true;
+      };
     };
 
     programs.bat.enable = true;