WIP: Flutter / Android development on NixOS

flake.nix

# Credits: https://github.com/NixOS/nixpkgs/pull/89775
{

  description = "Flutter / Android development on NixOS";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
    nixpkgs.url = "github:NixOS/nixpkgs/master";
    nixpkgs-androidenv.url = "github:numinit/nixpkgs/update-androidenv";
    # inputs.pub2nix = { url = "github:paulyoung/pub2nix"; flake = false; };
    pub2nix = { url = "/home/lex/x/workspace/pub2nix"; flake = false; };
  };

  outputs = inputs@{ self, nixpkgs, flake-utils, pub2nix, nixpkgs-androidenv, ... }:
    flake-utils.lib.eachSystem [ "x86_64-linux" ] (system:
      # flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          config =
            {
              allowUnfree = true;
              android_sdk.accept_license = true;
            };
          overlays = [
            (import "${pub2nix}/default.nix")
          ];
        };
        composed-androidenv = (import nixpkgs-androidenv { inherit system; config.android_sdk.accept_license = true; }).androidenv.composeAndroidPackages {
          toolsVersion = "26.1.1";
          platformToolsVersion = "30.0.5";
          buildToolsVersions = [ "29.0.2" ];
          # buildToolsVersions = [ "30.0.2" "29.0.2" ];
          platformVersions = [ "29" "30" ];
          includeEmulator = true;
          includeSources = true;

          # does not work: attribute 'armeabi-v7a' missing
          # includeSystemImages = true;

          useGoogleAPIs = true;
          extraLicenses = [
            # Already accepted for you with accept_license = true.
            # "android-sdk-license"

            # These aren't, but are useful for more uncommon setups.
            "android-sdk-preview-license"
            "android-googletv-license"
            "android-sdk-arm-dbt-license"
            "google-gdk-license"
            "intel-android-extra-license"
            "intel-android-sysimage-license"
            "mips-android-sysimage-license"
          ];
        };
      in
      rec
      {
        devShell = import ./shell.nix {
          inherit pkgs composed-androidenv;
        };
        defaultPackage = import ./nix/site.nix {
          inherit pkgs;
        };

      }
    );
}

shell.nix

#
# Credits: https://github.com/babariviere/flutter-nix-hello-world/tree/master
#

{ pkgs, composed-androidenv }:
let
  # android = pkgs.callPackage ./nix/android.nix { };
  env = with pkgs; bundlerEnv {
    name = "bundler-env";
    inherit ruby;
    gemfile = ./Gemfile;
    lockfile = ./Gemfile.lock;
    gemset = ./gemset.nix;
  };
  flutter-circl = pkgs.flutter-beta;
in
with pkgs;
pkgs.mkShell {
  buildInputs = [
    env
    strace
    gradle
    glibc
    flutter-circl
    android-studio
    pkgs.pub2nix.lock
    jdk
    composed-androidenv.androidsdk
  ];

  JAVA_HOME = pkgs.jdk;
  FLUTTER_SDK = flutter-circl.unwrapped;
  USE_CCACHE = 1;
  ANDROID_AVD_HOME = "~/.android/avd";
  ANDROID_SDK_ROOT = "${composed-androidenv.androidsdk}/libexec/android-sdk";
}