This is the way. I believe a simple 45-minute exercise one-on-one between a programmer and a candidate is all you need to gather the necessary information to hire. Simple followup questions like, "Before you start coding, talk me through your thought process and let's discuss a few implementations", "What's another way to solve this problem?" will weed out any bullshitters, and even find hidden strengths in candidates that would never be discovered in an automated Leetcode type interview.