There are a couple ways to customize some default pattern options coming in Plone 5.
An example in Plone core.
A brief exploration of the new Resource Registries in Plone 5.
Overview of using factored software to add 2-factor authentication for your web application
How to enable resumable file uploads in wildcard.foldercontents.
The tus python package aims to provide support for resumable file uploads.
Updated the site with a new diazo theme and sharing some xslt Diazo hints.
A preview of the new widgets for Plone 5 and other details related the UX/UI improvements going on.
A summary of things related UI going on.
wildcard.foldercontents overrides plone's default folder contents to provide more functionality.