Anything not CUA compatible feels aged... unfortunately, the standard "terminal" keyboard support is very poor regarding this things (escape key is often broken

Anything not CUA compatible feels aged... unfortunately, the standard "terminal" keyboard support is very poor regarding this things (escape key is often broken, modifier keys often compose well at all). What is really needed is a new terminal standard to support this. The (probably not workable) alternative is to deprecate the whole thing and make a higher level protocol.