diff --git a/docs/apps/forums.md b/docs/apps/forums.md
index e69de29..4c4c644 100644
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@@ -0,0 +1,13 @@
+# CentOS Forums
+
+For legacy reasons, we host two different forums instances but still using the same tech stack/solution :
+
+  * https://forums.centos.org (main one)
+  * https://fr.centos.org/forums (dedicated one to french language)
+
+The forum tech stack is just using [phpBB](https://www.phpbb.com/) with a MySQL DB 
+Worth knowing that it's almost the default phpBB stack and no real plugin added, and also meaning that (legacy) using the internal users DB, and so no SSO.
+
+The ansible role used to deploy the app is the [ansible-role-phpbb](https://github.com/centos/ansible-role-phpbb)
+
+To update between major release, we have a specific `adhoc-update-phpbb.yml` that can be used to update to a version (test this first on a test instance first)