The first thing I saw on the github page is a screenshot talking about a shooting, maybe it's a quote from something? I'm unsure but letting you know it's rathe

The first thing I saw on the github page is a screenshot talking about a shooting, maybe it's a quote from something? I'm unsure but letting you know it's rather offputting. I couldn't find what the signup process is like, it says it doesn't require creating an account on the official Signal app but I assume you still need to use a phone number?