From 5fde8eb1727021a370b5203376271f41d84146a4 Mon Sep 17 00:00:00 2001
From: Natasha Moongrave <natasha@256phi.eu>
Date: Thu, 18 Jun 2026 22:47:47 +0200
Subject: Added nix config in nix.nix as to avoid too large files and better
 optimise modules

---
 modules/system/nix.nix | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 modules/system/nix.nix

(limited to 'modules')

diff --git a/modules/system/nix.nix b/modules/system/nix.nix
new file mode 100644
index 0000000..83c8c55
--- /dev/null
+++ b/modules/system/nix.nix
@@ -0,0 +1,40 @@
+{lib, ...}: {
+  flake.nixosModules.nix = {pkgs, ...}: {
+    nix = {
+      package = pkgs.lixPackageSets.stable.lix;
+
+      settings = {
+        warn-dirty = lib.mkDefault true;
+        trusted-users = lib.mkDefault [
+          "root"
+          "mun"
+        ];
+        experimental-features = lib.mkDefault [
+          "nix-command"
+          "flakes"
+        ];
+        gc = {
+          automatic = lib.mkDefault true;
+          dates = lib.mkDefault "weekly";
+          options = lib.mkDefault "--delete-older-than 7d";
+        };
+        optimise = {
+          automatic = lib.mkDefault true;
+          dates = lib.mkDefault ["weekly"];
+        };
+      };
+    };
+    # Fix nixpkgs.overlays for Lix compatibility
+    nixpkgs.overlays = [
+      (final: prev: {
+        inherit
+          (prev.lixPackageSets.stable)
+          nixpkgs-review
+          nix-eval-jobs
+          nix-fast-build
+          colmena
+          ;
+      })
+    ];
+  };
+}
-- 
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