I don't see the problem with that. Any job seeker should have an updated CV at hand, and he'd better have some Rail project to show off if he is a Rail developp

I don't see the problem with that. Any job seeker should have an updated CV at hand, and he'd better have some Rail project to show off if he is a Rail developper, so dropping a standard "Hi, please find my cv enclosed, here is something I built..." is not a great deal for someone looking for a job.