Abora is a collection of implementations of the Xanadu and Udanax-Gold projects.
For details: http://abora.dgjones.info/
https://github.com/jonesd/abora
Abora White is Copyright 2003, 2014 David G Jones
Licensed under MIT X-11.
Substantial portions of the code are from the Udanax-Gold project and are Copyright 1979-1999 Udanax.com and licensed under MIT-X11.