diff --git a/nix/users/luca/jj.nix b/nix/users/luca/jj.nix
index 55600e5..2633e86 100644
--- a/nix/users/luca/jj.nix
+++ b/nix/users/luca/jj.nix
@@ -1,7 +1,14 @@
 {
   enable = true;
-  settings.user = {
-    email = "luca_lise@icloud.com";
-    name = "lucalise";
+  settings = {
+    user = {
+      email = "luca_lise@icloud.com";
+      name = "lucalise";
+    };
+    signing = {
+      behavior = "own";
+      backend = "ssh";
+      key = "~/.ssh/id_ed25519.pub";
+    };
   };
 }
diff --git a/nix/users/luca/zsh.nix b/nix/users/luca/zsh.nix
index 0667b09..b4ae992 100644
--- a/nix/users/luca/zsh.nix
+++ b/nix/users/luca/zsh.nix
@@ -33,6 +33,7 @@ in
       "rust"
       "kubectl"
       "helm"
+      "jj"
     ];
   };
   plugins = [