diff --git a/cluster/kube/k0.libsonnet b/cluster/kube/k0.libsonnet
index 7d482a74..cd7d6988 100644
--- a/cluster/kube/k0.libsonnet
+++ b/cluster/kube/k0.libsonnet
@@ -360,6 +360,15 @@ local rook = import "lib/rook.libsonnet";
                         store: "waw-hdd-redundant-3-object",
                         displayName: "woju",
                     },
+                # cz3's (patryk@hackerspace.pl) personal user
+                cz3Waw3: kube.CephObjectStoreUser("cz3") {
+                    metadata+: {
+                        namespace: "ceph-waw3",
+                    },
+                    spec: {
+                        store: "waw-hdd-redundant-3-object",
+                        displayName: "cz3",
+                    },
                 },
             },
         },