nostr:npub100hcc4mkxgjz22j4rgg23qhgw9qdlaejlf2ukgz5z8w68mm2dlvsehs6u4 I usually setup keybinds for say capture the active output or the active window or just a user definable area.
Look in my Qtile Wayland key bind config for examples.
Or my #RiverWM config here.