these 8 derivations will be built:
  /nix/store/5wj12fiqdlrr6nsxj7sa316bhz14g8yv-horae-customisation-layer.drv
  /nix/store/frwrdd5rp51nkfgfz0dfw100najrg7wb-horae-base.json.drv
  /nix/store/z4bansbwbshs8knmdb18mzy9z0c04vam-excludePaths.drv
  /nix/store/kda0by9vsaj75kbmsz00airsqcagzkpz-layers.json.drv
  /nix/store/2x34dm3j66h8nngmyn4vp5ik1b5isc9d-horae-conf.json.drv
  /nix/store/ri1ylsydnb3yqgxsa6zsamrvmypp5l8y-stream-horae.drv
  /nix/store/3jp4rdsj5xzv63vibpckvfgrc6mrik91-horae.tar.drv
  /nix/store/gq8vv0mg3qcyah8jrnkk2cx146cl8v2n-horae-0.1.0-oci.tar.drv