Assessment sent in May. Finally got back to me in August. They scheduled a Karat interview, which I passed. The final round interview is a thousand questions about git and testing. Know about unit testing, functional testing, and integration testing. Know about UML diagrams and how to make them. Know how to resolve a merge conflict. They expect you to have used all of these in your personal projects (!) which is an insane standard for an internship, in my opinion.