From 0ed536b3fc78ae503456e12e51becab044fa6ba9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Fri, 1 Jul 2022 01:30:46 +0200
Subject: [PATCH] hydra-ca: add upstream ca hydra cache

---
 hosts/hydra/hydra.nix | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hosts/hydra/hydra.nix b/hosts/hydra/hydra.nix
index 276e39f5..b08ae188 100644
--- a/hosts/hydra/hydra.nix
+++ b/hosts/hydra/hydra.nix
@@ -23,7 +23,10 @@
           };
           extraOptions = ''
             allowed-uris = https://gitea.c3d2.de/ https://github.com/ https://gitlab.com/ ssh://gitea@gitea.c3d2.de/
+            builders-use-substitutes = true
             experimental-features = ca-derivations nix-command flakes
+            extra-substituters = https://cache.ngi0.nixos.org/
+            extra-trusted-public-keys = cache.ngi0.nixos.org-1:KqH5CBLNSyX184S9BKZJo1LxrxJ9ltnY2uAs5c/f1MA=
           '';
         };