these 2 derivations will be built:
  /nix/store/q29xm054j0a3v8pik0440k84r1c48m3l-mobilizon-5.2.4.drv
  /nix/store/ml2z53knx4bwhdcfrr8h78ky4mp1lqb9-mobilizon-5.2.4.drv