[MacOS] yanking into system clipboard in vim mode about ble.sh HOT 2 CLOSED

You are on the right path. In addition to the above function, you just need to add the following keybindings:

# blerc

blehook/eval-after-load keymap_vi "
  ble-bind -m vi_nmap -f Y 'vi-command/operator Y'
  ble-bind -m vi_omap -f Y 'vi-command/operator Y'
  ble-bind -m vi_xmap -f Y 'vi-command/operator Y'
"

from ble.sh.

OMG IT WORKS! Thank you so much!! Actually I had the idea of implementing operator:$value from the vim-surround module. But I guess I missed the part that registers the mapping.

from ble.sh.