add flake

flake.nix

@@ -0,0 +1,37 @@
+{
+  description = "Taqin";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+
+  };
+
+  outputs =
+    inputs@{ nixpkgs, ... }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+    in
+    {
+      formatter.${system} = pkgs.nixfmt-rfc-style;
+
+      devShell.${system} =
+        with pkgs;
+        mkShell {
+          LD_LIBRARY_PATH = lib.makeLibraryPath [ stdenv.cc.cc ]; # For libstdc++.so.6
+          # ANDROID_HOME = "${androidenv.androidPkgs_9_0.androidsdk}/libexec/android-sdk";
+
+          nativeBuildInputs = [
+            clang
+            just
+
+            godot_4
+
+            android-tools
+            # androidenv.androidPkgs_9_0.androidsdk
+            # androidenv.androidPkgs_9_0.platform-tools
+            jre_headless
+          ];
+        };
+    };
+}