these 8 derivations will be built:
  /nix/store/8lvf6yxwirmd10yvba1pk65i7d9b70sx-horae-customisation-layer.drv
  /nix/store/ll3xp87r1rplan5wz0nadf7mlksk8h4w-horae-base.json.drv
  /nix/store/w6cc9kfcjyc739k79lagshmgw2yasw4v-excludePaths.drv
  /nix/store/hhi4p7z6wgalfvl1qb0das8mc6yq1zlw-layers.json.drv
  /nix/store/v7ya1wns57rngkvk1b033spalxfqdr9a-horae-conf.json.drv
  /nix/store/a4j0hh1zwm81jx5ynl6r46fxdch74cgv-stream-horae.drv
  /nix/store/2zwkg1z5df0x677sbalhgy5z65bc6bcr-horae.tar.drv
  /nix/store/5cckhq1gqhphv7sccpxdrxl8i0adpxq4-horae-0.1.0-oci.tar.drv