The Ed-Fi Community shares code, documentation, and resources in the Ed-Fi Exchange. Resources include utilities, deployment packages, documentation, and more. All of the material is free, and much of the code is open source (repo link above).
The Ed-Fi Tracker is a Jira-based issue tracking system. It's a great resource for product-specific technology issues. You must have a free Ed-Fi account to receive responses to tickets you create.
Other Useful Links
Looking for a general product catalog and documentation? See the Products & Technology article in this site for that information.