The original evilwm package is available from:
Copyright (C) 1999-2007 Ciaran Anscomb <firstname.lastname@example.org>
This is free software. You can do what you want to it, but if it
breaks something, you get to pay for the counselling. The code was
originally based on aewm, so this is distributed under the same terms,
Copyright (c) 1998-2000 Decklin Foster.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS", WITHOUT ANY EXPRESS
OR IMPLIED WARRANTIES OF ANY KIND. IN NO EVENT SHALL THE AUTHOR BE
HELD LIABLE FOR ANY DAMAGES CONNECTED WITH THE USE OF THIS PROGRAM.
You are granted permission to copy, publish, distribute, and/or sell
copies of this program and any modified versions or derived works,
provided that this copyright and notice are not removed or altered.
Portions of the code were based on 9wm, which contains this license:
> 9wm is free software, and is Copyright (c) 1994 by David Hogan.
> Permission is granted to all sentient beings to use this software,
> to make copies of it, and to distribute those copies, provided
> (1) the copyright and licence notices are left intact
> (2) the recipients are aware that it is free software
> (3) any unapproved changes in functionality are either
> (i) only distributed as patches
> or (ii) distributed as a new program which is not called 9wm
> and whose documentation gives credit where it is due
> (4) the author is not held responsible for any defects
> or shortcomings in the software, or damages caused by it.
> There is no warranty for this software. Have a nice day.