Get to know what OASP has to offer and start coding in zero time by following these steps.
First things first. Start your way through OASP by reading the OASP4j Platform Guide
There is currently one rather technical demo, simulating a few use cases of a restaurant management application
The OASP IDE setup guide will guide you how to get your development environment up and running.
Once you are able to code applications with OASP support you surely want to take a peek to the technology underneath and be able to customize for your needs.
The code is hosted on Github, here are the main repositories
Remember this is a joint effort and you are welcome to contribute.