From ee4a21c31420f91c1b830219c6336963b9fc0f02 Mon Sep 17 00:00:00 2001
From: Sense T <me@sense-t.eu.org>
Date: Tue, 4 Jul 2023 09:23:03 +0800
Subject: [PATCH] update nix config

---
 global/system-configuration.nix | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/global/system-configuration.nix b/global/system-configuration.nix
index 2ae9fd1..7458d07 100644
--- a/global/system-configuration.nix
+++ b/global/system-configuration.nix
@@ -30,7 +30,25 @@
             "nix-command"
             "flakes"
         ];
-    };
-    nix.gc.automatic = true;
 
+        substituters = [ 
+            "https://mirrors.ustc.edu.cn/nix-channels/store"            # 中科大
+            "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store"   # 清华
+            "https://mirrors.bfsu.edu.cn/nix-channels/store"            # 北外
+            "https://mirror.sjtu.edu.cn/nix-channels/store"             # 交大
+            "https://nixos-cn.cachix.org"
+            "https://cache.nixos.org/"
+        ];
+
+        trusted-users = [
+            "root"
+            "@wheel"
+        ];
+    };
+
+    nix.gc = {
+        automatic = true;
+        dates = "weekly";
+        options = "--delete-older-than 1w";
+    };
 }
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