# What is Fanmu

Fanmu is a **self-hosted media library**.

Your videos live on a WebDAV drive (OpenList included). Mount that drive in Fanmu and you can play in a browser, with danmaku on top.

## Why this exists

Watching a local or cloud file has one old problem: **no danmaku**.

DanDanPlay solved this for desktop: play a file from disk, get matching online danmaku. Fanmu does the same idea in a browser:

- Nothing to install on every machine
- Phone, tablet, TV browser all work
- Files stay in one place on the drive

## What it can do

- **Mount WebDAV** (OpenList uses its WebDAV endpoint)
- **Play video** in the browser; progress is saved
- **Danmaku**: matched from the open danmaku network; local XML as fallback
- **Library**: scan in files, posters, resume where you left off
- **Accounts**: each person has their own list and progress

## How it relates to DanDanPlay

| | DanDanPlay | Fanmu |
|--|------------|-------|
| Where it runs | Desktop app | In the browser |
| Where files live | Local disk | WebDAV drive |
| Danmaku | Open danmaku network | Same network |
| Install client | Yes | No |

Fanmu is not a plugin and does not need DanDanPlay running on your PC. It stands on its own: **video from your drive, danmaku from the web**.

## Not in v1

Present in DanDanPlay, not here yet:

- BT download / RSS
- AI subtitles and summaries
- Cast, frame interpolation
- Emby / Jellyfin / Plex (WebDAV only for now)

The main path first: mount → find → play → danmaku → progress.