Scheduler is written in Ruby, using the Rails application framework.
The underlying database is MySQL
For calendar display it makes use of FullCalendar , with the general interface being driven by Zurb Foundation.
Some of the icons used are kindly provided by Momenticons under the Creative Commons Attribution licence.
One other icon is kindly provided by Double-J Design under the Creative Commons Attribution 4.0 licence.
User-configurable forms are powered by Kevin Chappell’s excellent formBuilder
The target server runs Debian GNU/Linux version 9 (Stretch) although it should be possible to run the software on any Linux variant, MacOS X, or even Windows.