Is this job email real or scam ?

I received an email this morning that, to be honest, made me a little uncertain and confused.

They telling me that I am a good fit for the 9 engineering positions they have open this month because of my experience as a mid- and full-stack developer.

The strange part, though, is that the person asked if I wanted to apply,

and I was told that it would "help if I star their GitHub repo."

The hiring procedure, interviews, or even appropriate company information were not mentioned at all.

I am confused now !!!

Are some startups really approaching developers like this?

Or does it sound more like an email scam or red flag/SCAM ?

Would do you think is this is normal outreach or something I should avoid ??