* Bookworm

Script that exports the RSS list from a Miniflux server and generates
an ebook using calibre.

** Features

- Show the RSS feed list from Miniflux and the categories that
  Miniflux has.
- The script should store the feeds locally and have a flag to update
  the RSS feeds from the source of truth.
- The script should have a flag to determine how many days of articles
  are going to be included in the final ebook.
- The script should have a parameter to configure the format of the
  final ebook.
- Other configurable parameters in Calibre might be included in the
  script.
- If possible, the script should send the ebook to our reader, if
  possible (say, through the kindle email, for example).
- Allow to download the OPML and use it as a local storage for the
  feeds. In the future, maybe users will send their OPMLs and Miniflux
  will not be necessary.