--- a/www/HACKING.rst	Wed Jan 31 00:27:20 2018 +0200
+++ b/www/HACKING.rst	Fri Feb 09 15:05:35 2018 +0200
@@ -48,11 +48,26 @@
 
   $ make dict
 
-To produce Anki decks install Anki v... on Linux or get Anki sources at specific
-version (before port to Python 3)::
+To make Anki decks checkout Anki sources::
 
   $ git clone https://github.com/dae/anki.git
   $ cd anki
+
+and update to specific revision (before strong dependency to ``pyaudio`` which
+is not available on Cygwin)::
+
+  $ git co 1d75cff5e7458c6538a4e75728c16bef8b7adb3e^
+
+  $ git show 1d75cff5e7458c6538a4e75728c16bef8b7adb3e
+  commit 1d75cff5e7458c6538a4e75728c16bef8b7adb3e
+  Author: Damien Elmes <git@ichi2.net>
+  Date:   2016-06-23 12:04:48 +1000
+
+      pyaudio is no longer optional
+
+Previously build uses Python 2 and depends on earlier source revitions (before
+port to Python 3)::
+
   $ git co  15b349e3^
 
   $ git show 15b349e3