From 844449b899a0ee0066d6431a67a95f3c7e2f63ed Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torjus=20H=C3=A5kestad?= <torjus@usit.uio.no>
Date: Wed, 26 Feb 2025 18:34:44 +0100
Subject: [PATCH] Disable using itself as substituter for nix-cache

---
 services/nix-cache/nix.nix | 7 +++++++
 system/nix.nix             | 4 ++--
 2 files changed, 9 insertions(+), 2 deletions(-)
 create mode 100644 services/nix-cache/nix.nix

diff --git a/services/nix-cache/nix.nix b/services/nix-cache/nix.nix
new file mode 100644
index 0000000..16809c7
--- /dev/null
+++ b/services/nix-cache/nix.nix
@@ -0,0 +1,7 @@
+{ lib, ... }:
+{
+  nix.settings.substituters = lib.mkForce [
+    "https://cache.nixos.org"
+    "https://cuda-maintainers.cachix.org"
+  ];
+}
diff --git a/system/nix.nix b/system/nix.nix
index 825ceb5..c754ddc 100644
--- a/system/nix.nix
+++ b/system/nix.nix
@@ -1,4 +1,4 @@
-{ ... }:
+{ lib, ... }:
 {
   nix = {
     gc = {
@@ -15,7 +15,7 @@
         "https://cache.nixos.org"
         "https://cuda-maintainers.cachix.org"
       ];
-      substituters = [
+      substituters = lib.mkDefault [
         "https://nix-cache.home.2rjus.net"
         "https://cache.nixos.org"
         "https://cuda-maintainers.cachix.org"