Validity Software Engineer Intern interview questions

I got a take home exercise (absolutely love this concept, cause whiteboard has nothing to do with engineering). Later during the discussion was asked how could I improve the solution and how would I deploy it. Everyone was extremely nice and the only reason I had to decline was that it was financially nonviable, since I had no place to stay in Boston for the duration of the internship and the salary was little bit lower than FAANG and co offer to interns.