Unicycle is released under the MIT License:

/*********************************************************************
 * Unicycle is copyright (c) 2002 Bridget Spitznagel                 *
 *                                                                   * 
 * Permission is hereby granted, free of charge, to any person	     *
 * obtaining a copy of this software and associated documentation    *
 * files (the "Software"), to deal in the Software without	     *
 * restriction, including without limitation the rights to use,	     *
 * copy, modify, merge, publish, distribute, sublicense, and/or sell *
 * copies of the Software, and to permit persons to whom the	     *
 * Software is furnished to do so, subject to the following	     *
 * conditions:							     *
 *								     *
 * The above copyright notice and this permission notice shall be    *
 * included in all copies or substantial portions of the Software.   *
 *								     *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,   *
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES   *
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND	     *
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT	     *
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,	     *
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING	     *
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR     *
 * OTHER DEALINGS IN THE SOFTWARE.				     *
 *********************************************************************/