diff -r 12ecf11f8eab -r b5d329f7fe95 src/Pure/Tools/phabricator.scala
--- a/src/Pure/Tools/phabricator.scala	Sat Jan 04 21:33:08 2025 +0100
+++ b/src/Pure/Tools/phabricator.scala	Sat Jan 04 23:14:10 2025 +0100
@@ -777,6 +777,9 @@
 
   /** setup ssh **/
 
+  // see also https://we.phorge.it/book/phorge/article/diffusion_hosting/#sshd-setup
+
+
   /* sshd config */
 
   private val Port = """^\s*Port\s+(\d+)\s*$""".r