Welcome to the Getting Started section.
If you are interested in working with ERP5 as a user, please continue to the requesting an ERP5 VM instance for evaluation. Developers can find information on how to request a developer ERP5 instance via SlapOS or use via installer on the getting started for developers section.
Feel free to ask questins in the forum or get in tough with Nexedi, creator and maintaner of ERP5 directly through the contact section.