From c43cd8b595b12cb883097a292dd95cf79bd882c0 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, 18 Jan 2026 00:08:19 +0100
Subject: [PATCH] vanadium: update {min,max}-free with a formula

---
 nix/configurations/vanadium/nixos/sane-nix.nix | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/nix/configurations/vanadium/nixos/sane-nix.nix b/nix/configurations/vanadium/nixos/sane-nix.nix
index 83c080d8..bb710e8e 100644
--- a/nix/configurations/vanadium/nixos/sane-nix.nix
+++ b/nix/configurations/vanadium/nixos/sane-nix.nix
@@ -1,8 +1,11 @@
 # Protect my system from running out of storage or memory
+let
+  totalStorage = 930;
+in
 {
   nix.settings = {
-    min-free = 50 * 1024 * 1024 * 1024;
-    max-free = 100 * 1024 * 1024 * 1024;
+    min-free = builtins.ceil (totalStorage * 0.2) * 1024 * 1024 * 1024;
+    max-free = builtins.ceil (totalStorage * 0.3) * 1024 * 1024 * 1024;
   };
 
   systemd.services.nix-daemon.serviceConfig = {