diff --git a/README.md b/README.md
index adb239b..48d6050 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,38 @@ BlackPiBoard
 ============
 
 A blackboard using a Raspberry Pi and a pico-projector !
+
+## Setup
+I had a Raspberry Pi, an old videoprojector and a Wacom tablet lying around and
+search for something cool to do with them. So, I decided to make an interactive
+blackboard.
+
+The base code is minimalist for now, but I will develop it in the future.
+
+So, basically, you just have to connect the Wacom tablet and the videoprojector
+to the Raspberry Pi and launch the script.
+
+More details coming when I'll have tested it a bit more ! Don't worry to ask
+for more information if not coming fast enough or if you are interested.
+
+## LICENSE
+
+**Note :** The original code was found here: http://compsci.ca/v3/viewtopic.php?t=32343.
+I reused his code which was a good base for my code, but don't have any ways to
+contact him and no information on the license. So, the following only apply to
+my personnal modifications of the code.
+
+TLDR; I don't give a damn to anything you can do using this code (but please,
+tell me if you do anything cool :). It would just be nice to quote where the
+original code comes from.
+
+
+* -----------------------------------------------------------------------------
+* "THE NO-ALCOHOL BEER-WARE LICENSE" (Revision 42):
+* Phyks (webmaster@phyks.me) modified this file. As long as you retain this notice
+* you can do whatever you want with this stuff (and you can also do whatever
+* you want with this stuff without retaining it, but that's not cool...). If we
+* meet some day, and you think this stuff is worth it, you can buy me a
+* <del>beer</del> soda in return.
+*																		Phyks
+* ------------------------------------------------------------------------------
diff --git a/piboard.py b/piboard.py
index e0400ea..b337979 100755
--- a/piboard.py
+++ b/piboard.py
@@ -1,8 +1,16 @@
 #!/usr/bin/env python2
 # -*- coding: utf8 -*-
 
-# Written by: QuantumPhysics
-# http://compsci.ca/v3/viewtopic.php?t=32343
+# Code modified by Phyks
+# Date: December 2013
+# License:
+# ========
+# I don't give a damn to anything you can do using this code (but please, tell
+# me if you do something cool :).
+# It would just be nice to quote where the original code comes from.
+
+# Original code written by: QuantumPhysics
+# Found here: http://compsci.ca/v3/viewtopic.php?t=32343
 # Date Written: 10/06/12
 
 import wx