{
  username ? throw "username argument is required",
}:
{ config, pkgs, ... }:
let
  userConfig = config.users.users.${username};
  hmConfig = config.home-manager.users.${username};
in
{
  nixpkgs.overlays = [
    (final: prev: {
      android-tools = prev.android-tools.overrideAttrs (oldAttrs: {
        patches = oldAttrs.patches or [ ] ++ [ ./env-var-user-home.patch ];
      });
    })
  ];

  programs.adb.enable = true;
  services.gvfs.enable = true;

  users.users.${username}.extraGroups = [ "adbusers" ];

  home-manager.users.${username}.home = {
    sessionVariables.ANDROID_USER_HOME = "${hmConfig.xdg.dataHome}/android";
    persistence."/persist${userConfig.home}".files = [
      "${hmConfig.xdg.dataHome}/android/adbkey"
      "${hmConfig.xdg.dataHome}/android/adbkey.pub"
    ];
  };
}