Packagist is the main Composer repository. It aggregates public PHP packages installable with Composer.
TYPO3 Form Finisher: Store submitted data into a database table
Monitors TYPO3 instances and warns about insecure extensions, old TYPO3 versions, wrong PHP versions, etc. Requires a Nagios monitoring server.
TYPO3 v10 Site Package Extension
Dashboard widget that displays the most recent TYPO3 extensions published/updated at the TER