We run Hackfests (and other types of events) from time to time.
Search for it.
Examples for Toulouse Hackfest in France: svg source
Hackfest Virtual Machines
To make it easier for new contributors to get started writing code, we've created a system for spinning-up VMs in the cloud and allowing contributors to connect to them and build/run LibreOffice remotely, with little setup required on their local machine.
- For more details, see Hackfests/VMs