I'm trying to configure my Meta-Key, such that I can input {},[], etc. in a terminal emacs (using a German keyboard). I haved tried setting my Meta-Key, but can't get it to work. I want to use Alt+8 for {, Alt+9 for }, Alt-5 for [, Alt-6 for ].
(setq mac-option-modifier nil
mac-command-modifier 'meta
x-select-enable-clipboard t)