Sorry, we are no longer hosting free builds on BuildHive, but we are working on something new. BuildHive automatically detected and built projects from Github, without configuration. If you have used BuildHive in the past and would like to access your settings or other information, contact us here and we can help you out.
If you are interested in the CloudBees Jenkins Platform to host your own, take a look.
If you are interested in what comes after BuildHive, sign up here: