Building an AI interview coach because everyone I knew was prepping the same broken way

Been building something for the past few months and figured this is the right place to actually talk about it instead of just dropping a link somewhere. Backstory - I kept seeing the same pattern with friends prepping for interviews. Everyone grinding LeetCode alone, watching YouTube "how to answer system design questions" videos, maybe doing a mock interview with a friend once if they were lucky. Nobody was actually getting interrupted mid-answer with a follow-up question the way a real interviewer does. You can know the material cold and still freeze the first time someone pushes back on your answer live. So I built Elan. It's an AI that runs an actual voice interview with you - coding, system design, behavioral, all in one place instead of three different tools. It asks follow ups in real time, not scripted ones, and afterward breaks down what actually worked and what didn't instead of just handing you a score. Solo building this, full stack, from scratch. Still figuring out a lot - especially the go to market side since building the product was honestly the easier part compared to getting people to actually try it. If you're building something too, drop it below, I'll genuinely go check it out and support it. Would also love to hear if anyone here has done technical interview prep recently - what actually helped vs what was a waste of time. Trying to make sure this solves a real problem and not just the one I assumed existed.