anchor.diff:    # If an update breaks things, one of those might have valuable info:
     # https://aur.archlinux.org/packages/spotify/
     # https://community.spotify.com/t5/Desktop-Linux
  -  version = "1.0.96.181.gf6bc1b6b-12";
  +  version = "1.1.5.153.gf614956d-16";
     # To get the latest stable revision:
     # curl -H 'X-Ubuntu-Series: 16' 'https://api.snapcraft.io/api/v1/snaps/details/spotify?channel=stable' | jq '.download_url,.version,.last_updated'
     # To get general information:
     # curl -H 'Snap-Device-Series: 16' 'https://api.snapcraft.io/v2/snaps/info/spotify' | jq '.'
     # More examples of api usage:
     # https://github.com/canonical-websites/snapcraft.io/blob/master/webapp/publisher/snaps/views.py
  -  rev = "30";
  +  rev = "35";
   
   
     deps = [
       alsaLib
       atk
       at-spi2-atk
  +    at-spi2-core
       cairo
       cups
       curl
  
positive.code: { fetchurl, stdenv, squashfsTools, xorg, alsaLib, makeWrapper, openssl, freetype
  , glib, pango, cairo, atk, gdk_pixbuf, gtk2, cups, nspr, nss, libpng, libnotify
  , libgcrypt, systemd, fontconfig, dbus, expat, ffmpeg_3, curl, zlib, gnome3
  , at-spi2-atk
  }:
  
  let
  
negative.code:   # https://community.spotify.com/t5/Desktop-Linux/Redistribute-Spotify-on-Linux-Distributions/td-p/1695334
    src = fetchurl {
      url = "https://api.snapcraft.io/api/v1/snaps/download/pOBIoZ2LrCB3rDohMxoYGnbN14EHOgD7_${rev}.snap";
      sha512 = "9c2b7c2c6da28fa0c1d75d1ff77aa50604e3d60716f6bfe2b3da452d5d89c9c53c819921a60e1997a8cc42d07d7c15460f707ac5d21180fbb2dcc006e7b0e82b";
    };
  
    buildInputs = [ squashfsTools makeWrapper ];
  