diff --git a/README.md b/README.md
index 956fcf3..29322c3 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,12 @@
 - use `DISABLE_FEDERATION=1` to turn off federation listeners
 - don't use [`compose.matrix.yml`](https://git.coopcloud.tech/coop-cloud/traefik/src/branch/master/compose.matrix.yml) in your traefik config to keep the federation ports closed
 
+### Enabling federation
+
+See [`#27`](https://git.coopcloud.tech/coop-cloud/matrix-synapse/pulls/27) for more.
+
+Depending on your setup, using `SERVE_SERVER_WELLKNOWN=true` might work to start federating.
+
 ### Seeing what changed in `homeserver.yaml` between versions
 
 Change the version range to suit your needs.