* It's not exactly the same, but I use Kanshi for dynamic output configuration. https://github.com/emersion/kanshi
* https://github.com/bugaevc/wl-clipboard
* https://hg.sr.ht/~scoopta/wofi
* https://github.com/yory8/clipman
* There's wlrobs for OBS. There's grim/slurp/wl-recorder for use outside of OBS.
* You can use grim to grab a particular color on the screen, but the UI wouldn't be as good, of course.