Do you know what you'll be working on, or what tech stack you'll be using? I would probably try to get familiar w/ the specific languages, libraries, and tools

Do you know what you'll be working on, or what tech stack you'll be using? I would probably try to get familiar w/ the specific languages, libraries, and tools you'll be using on the job - maybe build a small project in them and/or go through some tutorials. Also, when I say tools, I don't just mean libraries - but also things like version control (git), and continuous integration (jenkins), if your company uses those - in my undergraduate program, we never did much with those, and it's good to be aware of them. It can't hurt to reach out to the company/team and ask what tech stack they use and what you can do to get prepared - being on the other side of this, I was thrilled when someone I hired recently asked this very question.