flake.nix

{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs?rev=3d58e3a31ee55554fe26650bb59db7d6d0e97625";
  outputs = { self, nixpkgs }:
    let
      native-pkgs = import nixpkgs {
        system = "x86_64-linux";
        allowUnfree = true;
        android_sdk.accept_license = true;
      };
      cross-pkgs = native-pkgs.pkgsCross.aarch64-android;

      platformVersion = "31";
      cmakeVersion = "3.10.2";
      buildToolsVersion = "31.0.0";
      # Check out pkgs/development/mobile/androidenv/repo.json for
      # nixpkgs-supported versions.
      ndkVersion = "23.0.7123448-rc1";
      androidComposition = native-pkgs.callPackage ../android.nix {
        inherit cmakeVersion buildToolsVersion platformVersion ndkVersion;
      };

    in {
      devShells.x86_64-linux.default = native-pkgs.mkShell rec {
        BUILD_PYTHON = "${native-pkgs.python3Minimal}/bin/python";
        HOST_PYTHON = "${cross-pkgs.python3Minimal}/bin/python";
        ANDROIDSDK = "${androidComposition.androidsdk}/libexec/android-sdk";
        ANDROIDNDK = "${ANDROIDSDK}/ndk-bundle";
        shellHook = ''
          export PATH="$(echo "$ANDROIDSDK/cmake/${cmakeVersion}".*/bin):$PATH"
        '';
      };
    };
}