How do I set floating rule for app that doesn't have bundle ID?

[smartding]

I installed mpv(a video player launched through command line) through brew. mpv isn't a cask, I can't get its bundle ID with command as follows:

mdls -name kMDItemCFBundleIdentifier /Applications/mpv.app

So how do I set floating rule in amethyst that requires a bundle ID?

[ianyh]

As a workaround, it looks like mpv windows have - mpv at the end, so you could do a global floating window title rule with that suffix.

[smartding]

Would you be more specific? I use a yaml configuration file, but can't find guide about how to write floating rules.

I tried something as below, but it doesn't work in 0.22.2 and macOS 15.3:

floating:
- "com.apple.systempreferences"
- "com.apple.finder"
- id: "*"
  window-titles:
  - "*- mpv*"

[ianyh]

Window titles are regular expressions.