diff --git a/nix/darwin.nix b/nix/darwin.nix
index a32b53d..62e581d 100644
--- a/nix/darwin.nix
+++ b/nix/darwin.nix
@@ -36,6 +36,17 @@
         StandardErrorPath = "/tmp/ollama_boltless.err";
       };
     };
+    # reference: https://gist.github.com/echo-dave/0d1ee6951c4e3bf00d738e84868e7d59
+    ssh-use-keychain = {
+      serviceConfig = {
+        Label = "sshusekeychain";
+        ProgramArguments = [ "bash" "-c" "ssh-add" "--apple-load-keychain" ];
+        RunAtLoad = true;
+        KeepAlive = false;
+        StadardOutPath = "/var/log/sshusekeychain/usekeychain.log";
+        StadardErrorPath = "/var/log/sshusekeychain/usekeychain.log";
+      };
+    };
   };
 
   # Necessary for using flakes on this system.