feat: add garnix config

Author: RossComputerGuy

flake.nix

@@ -20,6 +20,11 @@
     };
   };
 
+  nixConfig = {
+    substituters = ["https://cache.garnix.io"];
+    trusted-public-keys = ["cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="];
+  };
+
   outputs =
     {
       self,
@@ -159,6 +164,8 @@
                         wheelNeedsPassword = false;
                       };
 
+                      boot.initrd.kernelModules = [ "virtio_gpu" "virtio_pci" ];
+
                       virtualisation.qemu.options = [
                         "-vga none"
                         "-device virtio-gpu-gl-pci"

garnix.yaml

@@ -0,0 +1,4 @@
+build:
+  include:
+    - '*.aarch64-linux.*'
+    - '*.x86_64-linux.*'