From afb3105791615757b1a629af8de0dc2a88492989 Mon Sep 17 00:00:00 2001
From: Robert Rose <robert.rose@mailbox.org>
Date: Thu, 4 Sep 2025 14:31:56 +0200
Subject: [PATCH] nixos/k3s: use writableTmpDirAsHomeHook when pulling Helm
 charts

---
 nixos/modules/services/cluster/k3s/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/services/cluster/k3s/default.nix b/nixos/modules/services/cluster/k3s/default.nix
index c5c963696b23..9b54578ef97b 100644
--- a/nixos/modules/services/cluster/k3s/default.nix
+++ b/nixos/modules/services/cluster/k3s/default.nix
@@ -82,6 +82,8 @@ let
         nativeBuildInputs = with pkgs; [
           kubernetes-helm
           cacert
+          # Helm requires HOME to refer to a writable dir
+          writableTmpDirAsHomeHook
         ];
       }
       ''