diff --git a/docker/conf/lister.yml b/docker/conf/lister.yml
index 9cd251b..683a4b7 100644
--- a/docker/conf/lister.yml
+++ b/docker/conf/lister.yml
@@ -1,50 +1,51 @@
 scheduler:
   cls: remote
   url: http://swh-scheduler:5008/
 
 celery:
   broker_heartbeat: null
   task_broker: amqp://guest:guest@amqp//
   task_queues:
     - swh.lister.arch.tasks.ArchListerTask
     - swh.lister.aur.tasks.AurListerTask
     - swh.lister.bitbucket.tasks.FullBitBucketRelister
     - swh.lister.bitbucket.tasks.IncrementalBitBucketLister
     - swh.lister.bitbucket.tasks.RangeBitBucketLister
     - swh.lister.bower.tasks.BowerListerTask
     - swh.lister.cgit.tasks.CGitListerTask
     - swh.lister.conda.tasks.CondaListerTask
     - swh.lister.cpan.tasks.CpanListerTask
     - swh.lister.cran.tasks.CRANListerTask
     - swh.lister.crates.tasks.CratesListerTask
     - swh.lister.debian.tasks.DebianListerTask
     - swh.lister.fedora.tasks.FullFedoraRelister
     - swh.lister.gitea.tasks.FullGiteaRelister
     - swh.lister.gitea.tasks.IncrementalGiteaLister
     - swh.lister.gitea.tasks.RangeGiteaLister
     - swh.lister.github.tasks.FullGitHubRelister
     - swh.lister.github.tasks.IncrementalGitHubLister
     - swh.lister.github.tasks.RangeGitHubLister
     - swh.lister.gitlab.tasks.FullGitLabRelister
     - swh.lister.gitlab.tasks.IncrementalGitLabLister
     - swh.lister.gitlab.tasks.RangeGitLabLister
     - swh.lister.gnu.tasks.GNUListerTask
     - swh.lister.gogs.tasks.FullGogsRelister
     - swh.lister.golang.tasks.FullGolangLister
     - swh.lister.hackage.tasks.HackageListerTask
     - swh.lister.launchpad.tasks.IncrementalLaunchpadLister
     - swh.lister.launchpad.tasks.FullLaunchpadLister
     - swh.lister.maven.tasks.FullMavenLister
+    - swh.lister.nixguix.tasks.NixGuixListerTask
     - swh.lister.npm.tasks.NpmIncrementalListerTask
     - swh.lister.npm.tasks.NpmListerTask
     - swh.lister.nuget.tasks.NugetListerTask
     - swh.lister.opam.tasks.OpamListerTask
     - swh.lister.packagist.tasks.PackagistListerTask
     - swh.lister.phabricator.tasks.FullPhabricatorLister
     - swh.lister.phabricator.tasks.IncrementalPhabricatorLister
     - swh.lister.pubdev.tasks.PubDevListerTask
     - swh.lister.puppet.tasks.PuppetListerTask
     - swh.lister.pypi.tasks.PyPIListerTask
     - swh.lister.rubygems.tasks.RubyGemsListerTask
     - swh.lister.sourceforge.tasks.FullSourceForgeLister
     - swh.lister.sourceforge.tasks.IncrementalSourceForgeLister
diff --git a/docker/conf/loader.yml b/docker/conf/loader.yml
index 1a7cdc5..592f860 100644
--- a/docker/conf/loader.yml
+++ b/docker/conf/loader.yml
@@ -1,53 +1,55 @@
 storage:
   cls: pipeline
   steps:
     - cls: buffer
       min_batch_size:
         content: 10000
         content_bytes: 104857600
         directory: 1000
         revision: 1000
     - cls: filter
     - cls: remote
       url: http://nginx:5080/storage
 
 celery:
   broker_heartbeat: null
   task_broker: amqp://guest:guest@amqp//
   task_queues:
     - swh.loader.bzr.tasks.LoadBazaar
+    - swh.loader.core.tasks.LoadContent
+    - swh.loader.core.tasks.LoadDirectory
     - swh.loader.cvs.tasks.LoadCvsRepository
     - swh.loader.dir.tasks.LoadDirRepository
     - swh.loader.git.tasks.LoadDiskGitRepository
     - swh.loader.git.tasks.UncompressAndLoadDiskGitRepository
     - swh.loader.git.tasks.UpdateGitRepository
     - swh.loader.mercurial.tasks.LoadArchiveMercurial
     - swh.loader.mercurial.tasks.LoadMercurial
     - swh.loader.package.arch.tasks.LoadArch
     - swh.loader.package.archive.tasks.LoadArchive
     - swh.loader.package.aur.tasks.LoadAur
     - swh.loader.package.cpan.tasks.LoadCpan
     - swh.loader.package.cran.tasks.LoadCRAN
     - swh.loader.package.crates.tasks.LoadCrates
     - swh.loader.package.debian.tasks.LoadDebian
     - swh.loader.package.golang.tasks.LoadGolang
     - swh.loader.package.hackage.tasks.LoadHackage
     - swh.loader.package.maven.tasks.LoadMaven
     - swh.loader.package.nixguix.tasks.LoadNixguix
     - swh.loader.package.npm.tasks.LoadNpm
     - swh.loader.package.opam.tasks.LoadOpam
     - swh.loader.package.pubdev.tasks.LoadPubDev
     - swh.loader.package.puppet.tasks.LoadPuppet
     - swh.loader.package.pypi.tasks.LoadPyPI
     - swh.loader.package.rubygems.tasks.LoadRubyGems
     - swh.loader.svn.tasks.DumpMountAndLoadSvnRepository
     - swh.loader.svn.tasks.LoadSvnRepository
     - swh.loader.svn.tasks.MountAndLoadSvnRepository
     - save_code_now:swh.loader.bzr.tasks.LoadBazaar
     - save_code_now:swh.loader.cvs.tasks.LoadCvsRepository
     - save_code_now:swh.loader.git.tasks.UpdateGitRepository
     - save_code_now:swh.loader.mercurial.tasks.LoadArchiveMercurial
     - save_code_now:swh.loader.mercurial.tasks.LoadMercurial
     - save_code_now:swh.loader.svn.tasks.DumpMountAndLoadSvnRepository
     - save_code_now:swh.loader.svn.tasks.MountAndLoadSvnRepository
     - save_code_now:swh.loader.package.archive.tasks.LoadArchive