From ea5a24596ef68fce3d74c51fdaf7e9e82639013d Mon Sep 17 00:00:00 2001
From: Emery Hemingway <ehmry@posteo.net>
Date: Fri, 26 Mar 2021 10:19:54 +0100
Subject: [PATCH] Avoid evaulating nixpkgs again for localSystem == crossSystem

---
 flake.nix | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/flake.nix b/flake.nix
index b057aed..bcabb2b 100644
--- a/flake.nix
+++ b/flake.nix
@@ -207,10 +207,7 @@
         let f = import nixpkgs;
         in forAllSystems ({ system, localSystem, crossSystem }:
           if localSystem == crossSystem then
-            f {
-              inherit system;
-              overlays = [ self.overlay ];
-            }
+            nixpkgs.legacyPackages.${system}.extend self.overlay
           else
             f {
               inherit localSystem;