From fd27e13ef27640cc89eda53fdb0ca0380f5ab1be 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, 4 Jan 2026 22:14:25 +0100
Subject: [PATCH] nixos/system-nixconf: include best-effort {min,max}-free by
 default

---
 nix/nixosModules/common/system-nixconf.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nix/nixosModules/common/system-nixconf.nix b/nix/nixosModules/common/system-nixconf.nix
index 9a0d8783..fdfb8d20 100644
--- a/nix/nixosModules/common/system-nixconf.nix
+++ b/nix/nixosModules/common/system-nixconf.nix
@@ -8,6 +8,10 @@
     package = lib.mkDefault pkgs.nix;
 
     settings = {
+      # Try to have at least 10GB of space by default
+      min-free = lib.mkDefault (5 * 1024 * 1024 * 1024);
+      max-free = lib.mkDefault (10 * 1024 * 1024 * 1024);
+
       extra-substituters = [
         "https://nix-community.cachix.org"
       ];