World Monitor is a dashboard that brings together news and geopolitical,
infrastructure and market data on one page in the browser.

This port installs the self-hosted web application: the built frontend, the
API handlers, the local API server that runs them, a Redis REST proxy, a
relay service for aircraft, ship, siren and Telegram data, and a seed
service that keeps the data in Redis up to date.  A web server such as nginx
serves the frontend and forwards requests below /api/ to the local API
server.  Redis is required and installed as a dependency.

At least 4 GB of memory are recommended, both for building the port and for
running all its services.

The command-line client is a separate port, www/worldmonitor-cli.  It is not
needed for the dashboard.

Many panels need API keys of the data providers; most of them are free and go
into the configuration file.  Panels without a key stay empty.

A Pro subscriber of worldmonitor.app unlocks the Pro panels on this
installation with a desktop key, which is entered in the Settings of the
dashboard.  The installation checks the key with World Monitor and forwards
the Pro requests of that browser to World Monitor.  See
https://www.worldmonitor.app/docs/self-hosting for the details.
