From 37d1cb789ec0bbf84b8bf43faecc8aec14bd473d Mon Sep 17 00:00:00 2001
From: Song Jeyeong <46372718+hooreique@users.noreply.github.com>
Date: Sun, 20 Sep 2026 10:51:08 +0900
Subject: [PATCH] Add pinned Nix overlay

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

diff --git a/flake.nix b/flake.nix
index 2f5ebfb..33cfc82 100644
--- a/flake.nix
+++ b/flake.nix
@@ -4,7 +4,7 @@
   inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
   outputs =
-    { nixpkgs, ... }:
+    { self, nixpkgs, ... }:
     let
       forAllSys =
         perSys:
@@ -17,6 +17,10 @@
         fall = final.callPackage ./package.nix { };
       };
 
+      overlays.pinned = final: prev: {
+        fall = self.packages.${final.stdenv.hostPlatform.system}.default;
+      };
+
       packages = forAllSys (pkgs: {
         fall = pkgs.callPackage ./package.nix { };
         default = pkgs.callPackage ./package.nix { };