The OpenBLAS project on github (of which I am the currently acting maintainer) has been using drone CI
to ensure correct operation of our linear algebra library on ARM servers. Unfortunately CI jobs have stopped running at the end of August, and I have only now gotten hold of the original maintainer and owner of the github project, Zhang Xianyi. He tells me that his drone account appears to have been disabled without notice. I am not aware of a breach of your terms of service, so would appreciate clarification.