In my eternal journey to learn nvim and to use more the terminal, I would need to share the clipboard between the system and nvim itself.

To be able to do that on my Debian 12, with Wayland and KDE, I need to install the following package:

sudo apt install wl-clipboard

And then, using the + register in normal mode the keymap "+y will copy text to the clipboard. And "+p will paste text from the clipboard.

An example of vim configuration to make it easier:

" Copy/paste using system clipboard
nnoremap gy "+y
xnoremap gy "+y
nnoremap gp "+p
xnoremap gp "+p