The source code of the project is available under the Apache License V2.0 at: https://github.com/OpenNTF/XPagesExtLibX
Bootstrap 4 Alpha
Bootstrap 4 is the next major release of the open-source Bootstrap project. The first release was over 4 years ago, and each major release has brought with it significant changes. Currently, Bootstrap 4 is in alpha state, with a yet to be announced full release date. We are adding the alpha version of Bootstrap 4 to the ExtLibX project now in order to start preparing for Bootstrap 4’s future release. By laying the foundation for Boostrap 4 in XPages in the ExtLibX project during the alpha phase, it will facilitate its addition to the core Extension Library in a prompt manner once Bootstrap 4 is actually released. Futhermore, it gives the XPages community the opportunity to contribute to the development of Bootstrap 4 support in XPages between now and its official release.
In order for your maven build to be successful, you need to specify the location of the 'Domino Update Site'. The best way to do this is to specify the notes-platform property in your maven profile. somehow ??