... Product Hunt! I'm Doron, solo developer from Israel.   I just launched InterviewAI an AI that conducts real mock   interviews with voice. It asks you questions out loud, listens   to your answers, gives follow-up pressure questions, and then   gives detailed feedback on what you did well and what to improve.   Built it because I failed a few interviews myself despite knowing   the material. Nerves + no practice = disaster.   No signup required, completely free ... ... Really appreciate it and love the concept behind The Sponge, spaced          repetition is underrated. Would love to try it when you launch! Following you now. If you get a chance to     try InterviewAI

... them a lot. Looks like you have a smart routing feature too; I assume it routes based on the prompt, and which model would work best for that query? Comment from Doron Sun(@doron_sun): Building InterviewAI an AI mock interviewer that speaks to you in real-time, asks follow-up questions,   and gives instant feedback. Stack: Next.js 15, Groq (llama-3.3-70b for questions + Whisper for   speech-to-text), Web Speech API for TTS. Biggest challenge ... ... environment What s been harder than expected than the stack itself is everything around it: auth + permissions are getting complex fast (especially with multi-client setups) data pipelines + syncing are way harder than expected deciding what to precompute vs