{
  pkgs ? import <nixpkgs> { config.allowUnfree = true; },
}:

let
  androidSdk = pkgs.androidenv.composeAndroidPackages {
    buildToolsVersions = [ "35.0.0" ];
    platformVersions = [ "35" ];
    abiVersions = [ "x86_64" ];
    includeEmulator = false;
    includeSystemImages = false;
    includeNDK = false;
  };
in
pkgs.mkShell {
  buildInputs = with pkgs; [
    jdk21
    kotlin
    gradle
    androidSdk.androidsdk
    android-tools

    libGL
    libX11
    libXcursor
    libXext
    libXi
    libXrender
    fontconfig
    libxkbcommon
  ];

  shellHook = ''
    ln -sfn ${pkgs.jdk21}/lib/openjdk .jdk
    export ANDROID_HOME="${androidSdk.androidsdk}/libexec/android-sdk"
    export ANDROID_SDK_ROOT="${androidSdk.androidsdk}/libexec/android-sdk"
    export GRADLE_OPTS="-Dorg.gradle.java.installations.paths=${pkgs.jdk21}/lib/openjdk"
    export PATH="$ANDROID_HOME/platform-tools:$ANDROID_HOME/tools/bin:$JAVA_HOME/bin:$PATH"
    export LD_LIBRARY_PATH=${
      pkgs.lib.makeLibraryPath [
        pkgs.libGL
        pkgs.libX11
        pkgs.libXcursor
        pkgs.libXext
        pkgs.libXi
        pkgs.libXrender
        pkgs.fontconfig
        pkgs.libxkbcommon
      ]
    }

    echo "sdk.dir=$ANDROID_HOME" > local.properties

    echo "=== UNO KMP Dev Shell ==="
    echo "JDK:       $(java -version 2>&1 | head -1)"
    echo "Kotlin:    $(kotlin -version 2>&1 | head -1)"
    echo "Gradle:    $(gradle --version 2>&1 | grep 'Gradle')"
    echo "Android:   $ANDROID_HOME"
    echo "========================"
  '';
}