xdp-hook: call user-configured hooks when other apps use xdg-desktop-portal

I'd like to share a side-project that I finally got to a minimally-useful state this weekend, in case others find it useful

Repository: https://gitlab.com/jokeyrhyme/xdp-hook-rs

Features (as of 0.1.2):

• monitors Location, ScreenCast, and RemoteDesktop portal sessions
• triggers configured scripts/command when these sessions are created/closed

Example use case:

• I'm using eww as my status bar across the top of my screen
• I wanted to show/hide indicators whenever an application was using the ScreenCast portal (e.g. https://meet.jit.si/ or Zoom, or Teams, or whatever)
• so I'm using xdp-hook to detect when any application creates a ScreenCast session, and update the state in eww accordingly so that a blinking widget is displayed/removed

Suggestions and code contributions are welcome :)