It’s broader than a Neovim specific mapping, I’ve changed the system keyboard mapping of <Caps Lock> to <Esc> and <F9> to <Caps Lock>.
I think mapping <Caps Lock> to <Esc> isn’t uncommon for Neovim users. But I like having <Caps Lock> available for non Neovim purposes.
leader<y> to yank to the system
keyboardclipboard<leader> ywill put your system clipboard into the unnamed register?Yes