diff --git a/README.md b/README.md
index be6f6453..dc6d8ea4 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,10 @@ For more information, see the [project documentation](docs/index.md) or the
 
 ## Operating systems and distributions using OSTree
 
+[Apertis](https://www.apertis.org/) uses libostree for their host system as
+well as fatpak. See [update documentation](https://www.apertis.org/guides/ostree/) and
+[apertis-update-manager](https://gitlab.apertis.org/pkg/apertis-update-manager)
+
 [Endless OS](https://endlessos.com/) uses libostree for their host system as
 well as flatpak. See
 their [eos-updater](https://github.com/endlessm/eos-updater)
@@ -59,6 +63,9 @@ uses rpm-ostree as well.
 where OSTree was born - as a high performance continuous delivery/testing
 system for GNOME.
 
+[GNOME OS](https://os.gnome.org/) is a testing OS that uses libostree for
+their host system as well as flatpak.
+
 [Liri OS](https://liri.io/download/silverblue/) has the option to install
 their distribution using ostree.