The `v0.1` versions of `zrok` had an open-access `zrok create account` that allows any user to create an account. Useful for closed development environments only.
## In v0.2
* The `zrok create account` command now only takes an email address.
* The email address is submitted to an open-ended API endpoint, which then records an "account request", allocating a request token.
* An email is sent to the address offering a link with the request token, allowing the user to create the account.
An background garbage collector in the controller scans the account requests, looking for unused requests, which are removed after a configurable amount of time.
