React native nix shell config example

shell.nix

{ pkgs ? import <nixpkgs> { } }:

with pkgs;

let
  android = import (builtins.fetchTarball {
    url = https://github.com/tadfisher/android-nixpkgs/archive/0c4e5a01dbd4c8c894f2186a7c582abf55a43c5e.tar.gz;
    sha256 = "0x56nh4nxx5hvpi7aq66v7xm9mzn4b2gs50z60w8c3ciimjlpip8";
  }) {
    channel = "stable";
  };
  androidSdkPackages = android;
  androidSdk = androidSdkPackages.sdk (sdkPkgs: with sdkPkgs; [
    cmdline-tools-latest
    build-tools-29-0-2
    build-tools-30-0-3
    platform-tools
    platforms-android-29
    emulator
  ]);
in
mkShell {
  name = "rn-test";
  buildInputs = [
    watchman
    jdk8
    android-studio
    androidSdk
    nodejs-14_x
    (yarn.override { nodejs = nodejs-14_x; })
  ];
  shellHook = ''
    export JAVA_HOME="${jdk8.home}"
  '';
  # override the aapt2 that gradle uses with the nix-shipped version
  GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${androidSdk}/share/android-sdk/build-tools/30.0.3/aapt2";
}