I thought about having a prompt when this error occurred but if the user is running a gui, they wouldn't see the prompt and the process wouldn't end.

I've therefore changed the error message to:

> no repo announcement event found at specified coordinates. consider running `ngit init` to create one if you are the repository maintainer

Another approach could be to issue a prompt with a timeout so the process would fail but for now I think this error message is clear enough and its not much of a lift to ask the user to run the `ngit init` command.