Outspline is a modular outliner mainly intended to serve as a base for addons that extend its functionality. Its most important addon, developed in this very repository, is Organism, which adds advanced time management features, turning the application into a personal organizer.
Read the Wiki in order to get started.
See also the website and the project page on SourceForge.
Outspline is distributed under the terms of the GNU General Public License v3.0 (see LICENSE).