From 94a5259b6802fa0e8454f63c1453bb8233158742 Mon Sep 17 00:00:00 2001
From: Antoine Viallon <antoine@lesviallon.fr>
Date: Wed, 27 Apr 2022 01:20:42 +0200
Subject: [PATCH] [Overlays/Packages] Pin nixos-unstable to specific commit

---
 overlays.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/overlays.nix b/overlays.nix
index 1ba2494..6eb3139 100644
--- a/overlays.nix
+++ b/overlays.nix
@@ -2,7 +2,11 @@
 with lib;
 let
   cfg = config.aviallon.overlays;
-  unstable = import (builtins.fetchTarball "https://github.com/NixOS/nixpkgs/archive/nixos-unstable.tar.gz") {
+  unstable = import (fetchGit {
+    url = "https://github.com/NixOS/nixpkgs.git";
+    rev = "c573e3eaa8717fbabab3f9a58bfed637fb441eac";
+    ref = "nixos-unstable";
+  }) {
     config = config.nixpkgs.config // { allowUnfree = true; } ;
     overlays = config.nixpkgs.overlays;
   };