We tried similar in my last job. Interviews were often in the 45 minute range, but similar idea. We didn't get into deep technical questions. Rather, we aske

We tried similar in my last job. Interviews were often in the 45 minute range, but similar idea. We didn't get into deep technical questions. Rather, we asked questions meant to figure out if the person excited about the work or not. I can bring somebody up to speed on our language, but I can't train my way into curiosity or interest. For example, we asked what source control software they'd use if they were starting a project. Ultimately I don't care what they're into, so much as that they have used something and see enough value to have an opinion to offer - even if they've only ever used one tool.