DIEM Café was an early experiment in which we explored ideas and software around the use of World Café meetings online for DIEM25. This project has now become Democracy Café.
VIMEO 240350198 DIEM25 Café Debate: “Not a party”
# Zoom Café
Here we look at using Zoom to capture World Café style meetings, and deliberations in small groups. Below is a description of how to use Breakout Tables in Zoom:
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Jump to How To Use Zoom 2017 (plus Breakout Groups) - youtube 
# Physical spaces
As part of the DIEM Café initiative we are looking to connect or twin a number of physical spaces, where we can have regular meetings:
Here we list other technologies that we can build on (particularly WebRTC) in order to create the functionality we need for a truly Democratic Deliberation Platform.
The current software implementation is in php. It's a simple LAMP stack that serves to manage table allocation for World Café events online.