Interview tips/advice for a Junior Full Stack Role

I have an interview with a startup for a junior full stack role,

The interview process will be started with me giving a 20 min presentation on a project mentioned in my resume followed by a Q&A. The next round will be with the backend team where they will explore my background and dive deeper into some topics discussed in the phone interview and the presentation. The process also has lunch with potential teammates.

Any tips/advice on how to prep for the interview?

P.S Interview is on Monday. I have one prior internship as a full-stack dev.

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