I created a Plone conference add-on a longer time ago, which was used to run two LibreOffice conferences. I published the code of this add-on on the Plone collective Github account.
This add-on was created and used within Plone 4 and the Grok method. This is not the usal way to develop on Plone anymore thus I decided to first drop all grok ties and replace them with other Plone methods, especially make better use of configure.zcml. I’ll finish this work during the next days.
The goal of my work is the migration of the conference add-on to Plone 5.2.x and Python 3 and add new features afterwards to support the work of organizers of analog and online conferences.
The code of the conference add-on is available at: https://github.com/collective/collective.conferences