Complex Modifier Combinations for emacs -nw

Question

I'm giving up on these fancy modifier keys, like Hyper, as they are not usable on emacs -nw

What other modifier combinations can I use?

I have a programmable keyboard, the Moonlander, so I can make whatever combinations I want.

I know Control-Alt is transferable through emacs -nw and ssh, but what about other more weird combinations?

like Control-Alt-Shift, but that doesn't seem to work

Answer 1

Comprehensive keyboard handling in terminals provides a good overview of what is possibe / not possible in terminals.

If you know how to put kitty in progressive mode, then you can have whatever modifier keys you want.

Btw, kitty can be taught how to handle super keys on Debian and Mac. See https://emacs.stackexchange.com/a/73379/31220

This is how you teach kitty about C-M-S-a

(define-key input-decode-map
            (kbd "ESC [ 9 7 ; 8 u")
            (kbd "C-M-S-a"))

(global-set-key (kbd "C-M-S-a")
                (defun hello-world ()
                  (interactive)
                  (message "Hello World")))

The above snippet is a TLDR of a more elaborate snippet here https://emacs.stackexchange.com/a/73389/31220.