Hiring managers tell us the certificate opens the conversation and the project decides it. Build for the second one.
Every course here ends with a public project page: the original brief, what you delivered, and the mentor’s written notes. Students are often surprised that we publish the notes. Employers are the reason — a critique read alongside the work says more about how someone takes feedback than any grade can.
If you only have time to polish one thing before an interview, polish the project page. Then bring the certificate as evidence that you finished something with a deadline attached.