diff --git a/flake.nix b/flake.nix
index 0e18a7b..06871a1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,34 +1,23 @@
 {
-  description = "JavaFX dev shell";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/7b6142dae006";
 
-  inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs";
-    flake-utils.url = "github:numtide/flake-utils";
+  outputs = { self, nixpkgs }: {
+    devShell.x86_64-linux = nixpkgs.legacyPackages.x86_64-linux.mkShell {
+      buildInputs = [
+        nixpkgs.legacyPackages.x86_64-linux.jetbrains.idea-community-bin
+        nixpkgs.legacyPackages.x86_64-linux.maven
+        nixpkgs.legacyPackages.x86_64-linux.jdk17
+        nixpkgs.legacyPackages.x86_64-linux.openjfx17
+        nixpkgs.legacyPackages.x86_64-linux.glib
+      ];
+
+      shellHook = ''
+        export PATH="$PATH:${nixpkgs.legacyPackages.x86_64-linux.maven}/bin"
+        export JAVA_HOME="${nixpkgs.legacyPackages.x86_64-linux.jdk17}/lib/openjdk"
+        export PATH="$PATH:$JAVA_HOME/bin"
+        export LD_LIBRARY_PATH="${nixpkgs.legacyPackages.x86_64-linux.libGL}/lib:${nixpkgs.legacyPackages.x86_64-linux.gtk3}/lib:${nixpkgs.legacyPackages.x86_64-linux.glib.out}/lib:${nixpkgs.legacyPackages.x86_64-linux.xorg.libXtst}/lib:$LD_LIBRARY_PATH"
+        export JAVAFX_PATH="${nixpkgs.legacyPackages.x86_64-linux.openjfx17}/lib"
+      '';
+    };
   };
-
-  outputs = { self, nixpkgs, flake-utils }:
-    flake-utils.lib.eachDefaultSystem (system:
-      let
-        pkgs = import nixpkgs { inherit system; };
-      in {
-        devShell = pkgs.mkShell {
-          buildInputs = with pkgs; [
-            maven
-            jdk17
-            openjfx17
-            glib
-            nix
-            git
-	   jetbrains.idea-community-bin
-          ];
-
-          shellHook = ''
-            export JAVA_HOME="${pkgs.jdk17}/lib/openjdk"
-            export PATH="$JAVA_HOME/bin:$PATH:${pkgs.maven}/bin"
-            export LD_LIBRARY_PATH="${pkgs.libGL}/lib:${pkgs.gtk3}/lib:${pkgs.glib.out}/lib:${pkgs.xorg.libXtst}/lib:$LD_LIBRARY_PATH"
-            export JAVAFX_PATH="${pkgs.openjfx17}/lib"
-            echo "✅ JavaFX dev shell ready"
-          '';
-        };
-      });
 }
\ No newline at end of file