build: filter by arch to prevent duplicated

Author: SergioRibera

flake.nix

@@ -113,7 +113,13 @@
         }) architectures)) // (pkgs.lib.listToAttrs (map ({arch, ...} @ args: {
           name = "image-${arch}";
           value = containerPkg args;
-        }) architectures));
+        }) (builtins.listToAttrs (
+            map (x: {
+              name = x.nombre;
+              value = x;
+            }) (builtins.filter (x: !builtins.hasAttr "arch" x) architectures)
+        ))
+        ));
 
         apps = {
           help = {