{ pkgs ? import <nixpkgs> { } }:
let
  src = import ./source.nix;
  gems = pkgs.bundlerEnv {
    name = "mastodon-gems";
    gemdir = ./.;
  };
  yarns = pkgs.mkYarnPackage {
    pname = "mastodon-yarns";
    yarnNix = ./yarn.nix;
    packageJSON = ./package.json;
    version = "0.0.0";
    inherit src;
  };
in
pkgs.mkShell {
  packages = [ gems gems.wrappedRuby pkgs.yarn pkgs.nodejs pkgs.foreman ];

  RAILS_ENV = "development";

  # The rails bits default to this, but the node bits don't, which cause weird
  # errors trying to run the streaming component without sourcing a .envrc.
  DB_HOST = "/var/run/postgresql";
}