packagist 対応
Gitlabで管理し、かつpackagistで公開をしたい
GitLab Service
To enable the GitLab service integration, go to your GitLab repository, open the Settings > Integrations page from the menu. Search for Packagist in the list of Project Services. Check the "Active" box, enter your packagist.org username and API token. Save your changes and you're done.