Related projects that can be used for inspiration/comparison

Molior

This system maintain build nodes with different configuration (base version of Debian) and make it easy to build packages out of predefined git repositories and store the results in some aptly-managed repositories.

It has been presented to Debconf too, so it's possible to find video presenting the tool.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information