The APB script fails if there is a space in the path. I unpacked the tarball to "~/Developer/CRW Beta", then the script fails when it tries to read the config.json file:

cat: /Users/doug/Developer/CRW: No such file or directory
cat: Beta/codeready-workspaces-apb-installer/config.json: No such file or directory

Documented this on the product page for launch.