feat: setup base

modules/hm/core/nixpkgs.nix

@@ -0,0 +1,18 @@
+{ inputs, ... }:
+{
+  flake.modules.homeManager.core =
+    {
+      lib,
+      osConfig ? { },
+      ...
+    }:
+    {
+      nixpkgs = lib.mkIf (!(osConfig.home-manager.useGlobalPkgs or false)) {
+        config = {
+          allowUnfree = true;
+          joypixels.acceptLicense = true;
+        };
+        overlays = builtins.attrValues inputs.self.overlays;
+      };
+    };
+}