Publish composer packages to a project without a group

Problem to solve

You can use the GitLab Package Registry to publish and install your Composer dependencies to your Group right alongside your source code and pipelines. The problem is that there are many cases in which you want to publish packages to your project instead of your group. For example, if you have a project that doesn't belong to a group or if you are trying to publish all of your dependencies to one central project to make it easier to download and share dependencies.

Proposal

Create a new project-level endpoint for the GitLab Composer repository that will allow PHP Developers to specify a specific project in their workflows.

Further details

Currently, some of our tests create projects without a group, this will then, in turn, fail when a function is trying to use the group property of a project

This prompted an investigation where it seems not possible to use parent or a project instead of a group to configure a composer package in one's project