Remove llm-workflow-engine derivation fro aarch64-linux

packages/default.nix

@@ -5,7 +5,8 @@
   self,
   ...
 }: {
-  options.fleet.overlays = let
+  options.fleet = {
+    overlays = let
       overlayType = lib.mkOptionType {
         name = "nixpkgs-overlay";
         description = "nixpkgs overlay";
@@ -26,6 +27,15 @@
           })
         ];
       };
+    brokenPackages = lib.mkOption {
+      description = "Packages that are broken on a given system";
+      type = lib.types.attrsOf (lib.types.listOf lib.types.str);
+      default = {
+        aarch64-linux = ["llm-workflow-engine"];
+        x86_64-linux = [];
+      };
+    };
+  };
 
   config.perSystem = {
     system,
@@ -40,7 +50,8 @@
       config.fleet.overlays;
 
     packages =
-      lib.mapAttrs'
+      builtins.removeAttrs
+      (lib.mapAttrs'
         (name: value: {
           inherit name;
           value = pkgs.callPackage "${self}/packages/${name}" {
@@ -52,6 +63,7 @@
         })
         (lib.filterAttrs
           (_: type: type == "directory")
-        (builtins.readDir "${self}/packages"));
+          (builtins.readDir "${self}/packages")))
+      config.fleet.brokenPackages.${system};
   };
 }