0.7 - 2023-05-18:
  - remove unneeded dependency.
  - add documentation about Docker.

0.6 - 2023-05-18:
  - convert to module so it can be distributed via CPAN.

0.5 - 2022-10-06:
  - this space left intentionally blank.

0.4 - 2022-10-06:
  - add this file.
  - add --registrar argument.