zsh: Can't set DYLD_LIBRARY_PATH in ~/.zshenv to get ImageMagick working under MacOS Catalina
This is a simple typo!

The definition of the variable DYLD_LIBRARY_PATH  refers to the variable set in the previous line: MAGICK_HOME:

So add a K and the respective lines of .zshenv look like this then:

export MAGICK_HOME="/usr/local/bin/ImageMagick-7.0.9/"
export DYLD_LIBRARY_PATH="$MAGICK_HOME/lib/"


Other source: Mac OS X Binary Release