[racket] Emacs keybinding

I notice that there are many keystrokes missing in emacs keybindings.
Besides this copy-clipboard (M-w) does not work like in emacs. When I mark
a region and press Alt-w, the editor does not exit select mode. This means
that I am not able to move to another place and paste the selected region.
If I try to move to another place, the cursor keeps extending the selected
region.

My suggestion is replacing copy-clipboard by another function that acts
exactly like M-w in Emacs. I also would appreciate if somebody provides a
correct keybinding for M-w. Something that I could load.
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