serve

Put the review pages in front of the user. One server, one port, every milestone.

Takes stop or nothing.

The address

http://localhost:4399, always. The page opens on the milestone with decisions still to answer, newest if they are all answered, and the tabs at the top reach every other one.

Give the user that address and nothing else. Never hand them a command to type, a file path, or a port worked out at runtime.

Start

Ask the port whether our server is already there: