One of the features added in PR #629 was the ability for users to specify per-user volume mounting by specifying KERNEL_VOLUME_MOUNTS and KERNEL_VOLUMES values in the env stanza of the api/kernels POST request's json body. We need to document an example of how that would be accomplished. It could be as simple as taking the example from #629

This issue came up during the review of PR #7

When users "share message" and add a comment, the RTM includes an "attachment" field on the message. The web client displays the text of this message, and the user sometimes adds a comment about it. This currently displays in IRC as a context-free comment since the attachment is dropped.
Not sure how this should be rendered. Maybe just insert a new message, as if sent by the sharing user, with th

I suggest you to raise moyasar custom exception (for payment requests) instead of base exceptions. It's a really good mechanism for separating user exception and moyasar exceptions. More details about this can be found at python doc.