I don't know anything about these bikes; but what is one supposed to do once they retrieve their keys? Does the app/bike provide an alternative method of presenting the key? Are keys rotated, so they need to be downloaded more than once (I assume that's that's the case since this code is intended to be run as a service, in a Docker container)? If so, what happens when their servers do shut down and there is no API?

Are people like the creator of this tool hoping for a future option to make use of the keys, and they're just being backed up for a rainy day at this point?