Slack is the main means of communication in the board. At any time, many things are happening simultaneously, and Slack allows for this to be divided into channels. It makes it much easier for things not to be lost in a single thread. 

Upon being elected, you will be invited to the Analog Board workspace.

There are channels dedicated to, among others, GA, operations, incoming emails and many more.

Most communication within the board is not urgent. Thus you don't have to stay on top of what's happening all the time, but check in at least once a day. You can also set up slack on your phone, and receive notifications like you would any other messaging app.