Mylar3 is the Python 3 version of an automated downloader and manager for comics in cbr/cbz format. Its core principle is the watchlist: you add series to monitor, and Mylar3 continuously scans sources to fetch, sort, rename, and automatically organize issues as they are published. It is, for comics, the equivalent of what Sonarr/Radarr do for TV series and movies.
The application relies on the ComicVine API to accurately identify series, issues, and metadata (covers, release dates, publishers). It manages tracking of weekly pull-lists (weekly releases), allowing you to view upcoming issues up to four weeks in advance, as well as story arcs, Trade Paperbacks (TPB), and Graphic Novels (GN).
Regarding acquisition, Mylar3 does not download files itself: it drives third-party clients. It interfaces with SABnzbd and NZBGet for Usenet, with torrent clients, Newznab indexers, and direct download. After retrieval, post-processing renames files, tags metadata (ComicTagger), generates series.json for Komga or Kavita, and identifies missing issues.
Technically, Mylar3 is a lightweight Python 3 application with a SQLite database, which runs on a NAS, a Raspberry Pi, or in a Docker container. The web interface is exposed by default on port 8090. Target audience: collectors and readers managing a substantial digital library.