{ pkgs, lib, ... }:

{
  # https://devenv.sh/packages/
  packages = with pkgs; [
    bash
    elixir-ls
  ] ++ lib.optionals stdenv.isLinux [ inotify-tools libnotify ];

  env = {
      ERL_AFLAGS = "-kernel shell_history enabled";
      MIX_REBAR3 = "${pkgs.rebar3.outPath}/bin/rebar3";
  };

  enterShell = ''
      export MIX_HOME="$PWD/.nix-mix"
      export HEX_HOME="$PWD/.nix-hex"
      mkdir -p "$MIX_HOME"
      mkdir -p "$HEX_HOME"
      export ESBUILD_PATH=${pkgs.esbuild}/bin/esbuild
      [[ "$PATH" =~ "$MIX_HOME/bin" ]] || export PATH="$MIX_HOME/bin:$PATH"
      [[ "$PATH" =~ "$HEX_HOME/bin" ]] || export PATH="$HEX_HOME/bin:$PATH"
  '';

  services.postgres = {
    enable = true;
    initialScript = ''
    CREATE USER postgres SUPERUSER;
    '';
  };

  services.rabbitmq = {
    enable = true;
    managementPlugin = {
      enable = true;
    };
  };

  languages.elixir.enable = true;
  languages.erlang.enable = true;
}