Good question. Currently you will need to email a git repository URL and tag you want published (e.g., https://git.build2.org/hello/libhello.git#v1.0.0) and we will publish it for you (or you can provide a package archive if you prefer).

For the next version we plan to implement a CI/CD bot which will poll your git repository for tagged versions and automatically test and publish them to cppget.org (there will be some sort of a control file that you will be able to use to specify which tags should be published where, etc).