push sheeet

pkgs/stdenv/custom/default.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  localSystem,
+  crossSystem,
+  config,
+  overlays,
+  crossOverlays ? [ ],
+}:
+
+assert crossSystem == localSystem;
+
+let
+  bootStages = import ../. {
+    inherit
+      lib
+      localSystem
+      crossSystem
+      overlays
+      ;
+    # Remove config.replaceStdenv to ensure termination.
+    config = removeAttrs config [ "replaceStdenv" ];
+  };
+
+in
+bootStages
+++ [
+
+  # Additional stage, built using custom stdenv
+  (vanillaPackages: {
+    inherit config overlays;
+    stdenv =
+      assert vanillaPackages.stdenv.hostPlatform == localSystem;
+      assert vanillaPackages.stdenv.targetPlatform == localSystem;
+      config.replaceStdenv { pkgs = vanillaPackages; };
+  })
+
+]