A private, single-user mail automation running on the owner's own machine.
gmail-dispatcher watches one Gmail mailbox belonging to its operator. When a message arrives that is addressed to a specific whitelisted recipient address, the tool passes that message on to the operator's own assistant, which summarises it for them.
It is not a product and has no users other than its author. There is no sign-up, no hosted service and no third party involved. The source is a private repository; this page exists because Google requires an application using the Gmail API to publish a home page and a privacy policy.