“arachni_web” cannot be opened because it is from an unidentified developer.

[M0dred]

arachni_console ; exit;
K0walski@Kowalski ~ % /Users/K0walski/Downloads/arachni-1.5.1-0.5.12/bin/arachni_console ; exit;
dyld: Library not loaded: /Users/zapotek/arachni-build-dir/arachni/system/usr/lib/libruby.2.2.0.dylib