From 055af0cc4421732f3d5a695082ec34f178f7e5dc Mon Sep 17 00:00:00 2001
From: sinanmohd <sinan@sinanmohd.com>
Date: Fri, 29 Aug 2025 12:42:47 +0530
Subject: chore(os/common/nix): enable automatic gc

---
 os/common/modules/nix.nix | 40 ++++++++++++++++++++++++----------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/os/common/modules/nix.nix b/os/common/modules/nix.nix
index cf3843e..711ead4 100644
--- a/os/common/modules/nix.nix
+++ b/os/common/modules/nix.nix
@@ -3,23 +3,31 @@ let
   user = config.global.userdata.name;
 in
 {
-  nix.settings = {
-    auto-optimise-store = true;
-    use-xdg-base-directories = true;
-    trusted-users = [ user ];
+  nix = {
+    gc = {
+      automatic = true;
+      dates = "weekly";
+      options = "--delete-older-than 30d";
+    };
 
-    experimental-features = [
-      "flakes"
-      "nix-command"
-    ];
+    settings = {
+      auto-optimise-store = true;
+      use-xdg-base-directories = true;
+      trusted-users = [ user ];
 
-    substituters = [
-      "https://nixbin.sinanmohd.com"
-      "https://nix-community.cachix.org"
-    ];
-    trusted-public-keys = [
-      "nixbin.sinanmohd.com:dXV3KDPVrm+cGJ2M1ZmTeQJqFGaEapqiVoWHgYDh03k="
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-    ];
+      experimental-features = [
+        "flakes"
+        "nix-command"
+      ];
+
+      substituters = [
+        "https://nixbin.sinanmohd.com"
+        "https://nix-community.cachix.org"
+      ];
+      trusted-public-keys = [
+        "nixbin.sinanmohd.com:dXV3KDPVrm+cGJ2M1ZmTeQJqFGaEapqiVoWHgYDh03k="
+        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+      ];
+    };
   };
 }
-- 
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