With the access:servers scope in JupyterHub 2.0, sharing a link to your server can work, as the deployment can choose to grant collections of users access to each other’s servers, e.g. access:servers!group=students to grant access to student servers. There isn’t yet a mechanism for users to grant access to their own servers, so it has to be done at the admin-level, but if you know you want e.g. group-level sharing, that can work. Without teaching the collaboration about JupyterHub auth, this means that you are granting other folks full permissions to act ‘as you’ with the running server, but that’s okay in limited circumstances, and enough to get off the ground for early adopters to try things out.
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