fix: add ssh keys to agent for all hosts

home/modules/ssh.nix

@@ -18,20 +18,25 @@ in
     enable = true;
     enableDefaultConfig = false;
 
-    matchBlocks = lib.genAttrs hostsWithKeys (
+    matchBlocks =
+      lib.genAttrs hostsWithKeys (
         hostname:
         let
           hostConfig = outputs.nixosConfigurations.${hostname}.config;
-        publicHostname = hostConfig.ssh.publicHostname;
-        targetUser = hostConfig.ssh.username;
+          inherit (hostConfig.ssh) publicHostname username;
         in
         {
           host = hostname;
-        user = targetUser;
+          user = username;
         }
         // lib.optionalAttrs (publicHostname != "") {
           hostname = publicHostname;
         }
-    );
+      )
+      // {
+        "*" = {
+          addKeysToAgent = "yes";
+        };
+      };
   };
 }