As anyone else found that a good resume discussion is often much better than the coding component? I've concluded that implementation difficulties, decisions made (tradeoffs, technologies, etc.) and the collaborative environment around projects, are much better signals than the code part of my interviews.
If you've dealt with a broad range of tech and can ask the right questions, it's relatively easy to get a strong signal from a candidate by having a deep discussion on their work on prior projects. Both are needed and very useful.