fm-dlp-core is a Python library that wraps around the beloved yt-dlp project and extends it with first-class support for searching and downloading audio and video from YouTube, YouTube Music, and over a thousand other supported sites. Rather than being a standalone CLI, it's positioned as a reusable core — a framework layer that other applications can build on top of.

What makes this repo interesting is the deliberate architectural choice to split the "search + metadata retrieval" concerns from the "download and transcode" concerns. It bundles ytmusicapi for rich music search results and leans on ffmpeg for post-processing, giving downstream apps a batteries-included toolkit without them having to glue the pieces together themselves.

Some things worth noting:

• It's AGPLv3-licensed, which signals the author is serious about keeping derived works open — a fairly bold stance for a utility library.
• The topic tags (lib, library, libraries, framework) suggest it's intentionally scoped as an embeddable dependency rather than an end-user tool.
• The "fm" prefix hints at a broader family of tools — likely a media-manager or music-player frontend being built by the same author, with this as the foundation.

Who would find it useful?

• Self-hosters building personal music libraries or Jellyfin/Navidrome pipelines who want programmatic ingestion.
• Developers of media clients who need a reliable Python-side abstraction over yt-dlp without reinventing search plumbing.
• Researchers or archivists who need to script bulk retrieval from streaming sources for offline analysis.

The fact that it's zero-stars but already well-structured with meaningful topic tags and a clear scope statement suggests this is early-stage but thoughtfully designed — the kind of repo worth bookmarking to see if it matures into something the wider yt-dlp ecosystem adopts.