From 724937461f2326bbe512c5d03b145ac8381624b4 Mon Sep 17 00:00:00 2001
From: Emily <vcs@emily.moe>
Date: Sun, 16 Jul 2023 20:09:12 +0100
Subject: [PATCH] eval-config: set `class`

See [the Nixpkgs manual]. This allows modules to declare themselves
as being only for NixOS or nix-darwin, reducing compatibility
risks. Unmarked modules will continue to behave as before. Technically
a breaking change, but any configuration importing a module explicitly
marked as NixOS-specific was probably broken already.

[the Nixpkgs manual]: https://nixos.org/manual/nixpkgs/unstable/#module-system-lib-evalModules-param-class
---
 eval-config.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/eval-config.nix b/eval-config.nix
index 9663849a..57a03814 100644
--- a/eval-config.nix
+++ b/eval-config.nix
@@ -16,6 +16,7 @@ let
   };
 
   eval = lib.evalModules (builtins.removeAttrs args [ "lib" ] // {
+    class = "darwin";
     modules = modules ++ [ argsModule ] ++ baseModules;
     specialArgs = { modulesPath = builtins.toString ./modules; } // specialArgs;
   });