Online exchange of information, e.g. whether shifts are taking place, will be shared via a telegram group. You need to install telegram on your preferred device, but your phone number will not be disclosed. Afterwards you can join via the link that has been communicated via email.
There are many different ways to install wget under apple devices. You can use Homebrew or MacPorts, which is super easy to work. Or if you have the xcode environment installed, you can download the latest wget source and compile it on your mac, using the standard procedure (.\configure && make)