diff --git a/flake.nix b/flake.nix
index 8019bda..8b17c25 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,43 +1,20 @@
 {
-  description = "Image Processor C API";
-
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
-  };
+  inputs.nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
 
   outputs = {
     self,
     nixpkgs,
   }: let
-    supportedSystems = ["x86_64-linux" "aarch64-linux" "x86_64-darwin" "aarch64-darwin"];
-    forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+    system = "aarch64-darwin"; # Use "x86_64-darwin" for Intel
+    pkgs = nixpkgs.legacyPackages.${system};
   in {
-    packages = forAllSystems (system: let
-      pkgs = import nixpkgs {inherit system;};
-    in {
-      default = pkgs.stdenv.mkDerivation {
-        pname = "image-processor";
-        version = "0.1.0";
-        src = ./.; # Since the flake is in the repo, we use local source
+    devShells.${system}.default = pkgs.mkShell {
+      buildInputs = [pkgs.libjpeg_turbo];
 
-        # nativeBuildInputs are tools needed at build time (like CMake)
-        nativeBuildInputs = [pkgs.cmake pkgs.pkg-config];
-
-        # buildInputs are libraries your API depends on (e.g., libpng, opencv)
-        buildInputs = [];
-
-        # Nix automatically runs: cmakeConfigurePhase, buildPhase, installPhase
-        # You just need to ensure your CMakeLists.txt has 'install()' targets.
-      };
-    });
-
-    devShells = forAllSystems (system: let
-      pkgs = import nixpkgs {inherit system;};
-    in {
-      default = pkgs.mkShell {
-        inputsFrom = [self.packages.${system}.default];
-        packages = [pkgs.gdb];
-      };
-    });
+      shellHook = ''
+        export C_INCLUDE_PATH="${pkgs.libjpeg_turbo.dev}/include:$C_INCLUDE_PATH"
+        export LIBRARY_PATH="${pkgs.libjpeg_turbo}/lib:$LIBRARY_PATH"
+      '';
+    };
   };
 }