# Add-On Packaging Requirements
The Open-Realty Add-On Manager can automatically install OR add-ons that are compliant with these add-on specifications. Add-ons must be packaged properly in order for the Add-On Manager to be able to handle installations and upgrades properly.
Add-ons must be compressed in a single ZIP file that is named using the add-on's name exactly. The sample Framework add-on (opens new window) would be named, for example: "framework.zip"
The ZIP file should contain the add-on folder that is the same name of the add-on, and that folder must contain the "addon.inc.php" file.
# Example .zip file contents for 'widget' add-on:
/widget/addon.inc.php