Fetch pinned nixpkgs as tarball

This should speed up initial building (e.g. on a builds.sr.ht).

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos.nix b/nixos.nix
index 4a1257e..a1a1205 100644
--- a/nixos.nix
+++ b/nixos.nix
@@ -1,7 +1,7 @@
 # Nix config for the main biz machine.
 
 let
-  nixpkgs = fetchGit (import ./pkgs.nix);
+  nixpkgs = builtins.fetchTarball (import ./pkgs.nix);
 in
 import "${nixpkgs}/nixos" {
   system = "x86_64-linux";