From a39a2ba616c44c37cf6ee07cac219ca18df5b813 Mon Sep 17 00:00:00 2001
From: Simon Bruder <simon@sbruder.de>
Date: Wed, 20 Sep 2023 22:11:54 +0200
Subject: [PATCH] nix: Make nix-shell not fail on non-krops machines

Only krops stores the current configuration under /var/src/config.
As I use krops much less, this is not present on all machines.
---
 modules/nix.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/nix.nix b/modules/nix.nix
index 4d6cc08..39b1bed 100644
--- a/modules/nix.nix
+++ b/modules/nix.nix
@@ -10,7 +10,7 @@ let
       let
         # Load the system config and get the `nixpkgs.overlays` option
         # This fails gracefully if getFlake is not available
-        overlays = if builtins.hasAttr "getFlake" builtins
+        overlays = if (builtins.hasAttr "getFlake" builtins && builtins.pathExists "/var/src/config")
           then (builtins.getFlake "/var/src/config").nixosConfigurations.${config.networking.hostName}.config.nixpkgs.overlays
           else [ ];
       in