What are Legacy packages?
Legacy packages is the gateway for retrieving legacy Contao packages from the ER2 via composer.
The content of this repository is updated regularly (every hour) to provide the latest packages.
How to submit packages?
First of all, we encourage you to NOT submit packages to the ER2.
If you still insist uploading them there, head over to contao.org and follow the instructions there.
The better method is, to submit them to the regular packagist.org and be solely dependent on composer instead of the legacy ER2.