From f83a35403eb1d2e59efd8920069f3b548b68f449 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9ana=20=E6=B1=9F?= <leana.jiang+git@icloud.com>
Date: Sun, 3 Aug 2025 09:51:08 +0200
Subject: [PATCH] nix: add function to catch currentSystem used anywhere

---
 default.nix | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/default.nix b/default.nix
index 0a0f3316..531e8e87 100644
--- a/default.nix
+++ b/default.nix
@@ -1,4 +1,14 @@
-{sources ? import ./npins}: {
+{sources ? import ./npins}: let
+  # Catch where currentSystem is evaluated
+  fakeImport = builtins.scopedImport {
+    builtins =
+      builtins
+      // {
+        currentSystem = throw "`currentSystem' is disabled";
+      };
+    import = fakeImport;
+  };
+in {
   lib = import (sources.nixpkgs + "/lib");
 
   nixosConfigurations = builtins.mapAttrs (_: import (sources.nixpkgs + "/nixos/lib/eval-config.nix")) {