ColdMock: Building an Autonomous, Zero-Cost Voice Interviewer for My College Peer

Description and use

<p>This is a submission for the Hacktoberfest Weekend Challenge: Build for a Friend (<a href="https://dev.to/challenges/hacktoberfest-weekend-2026-10-01">https://dev.to/challenges/hacktoberfest-weekend-2026-10-01</a>)</p> <p>What I Built<br> My college friend has been prepping hard for campus placements. He can solve LeetCode problems easily, but in real interviews he freezes up when he has to explain systems concepts out loud. Existing AI tools charge subscriptions or make you wait seconds for every cloud reply, which ruins the flow. </p> <p>I built ColdMock so he can do rapid-fire oral techn

Problem

<p>This is a submission for the Hacktoberfest Weekend Challenge: Build for a Friend (<a href="https://dev.to/challenges/hacktoberfest-weekend-2026-10-01">https://dev.to/challenges/hacktoberfest-weekend-2026-10-01</a>)</p> <p>What I Built<br> My college friend has been prepping hard for campus placements. He can solve LeetCode problems easily, but in real interviews he freezes up when he has to explain systems concepts out loud. Existing AI tools charge subscriptions or make you wait seconds for every cloud reply, which ruins the flow. </p> <p>I built ColdMock so he can do rapid-fire oral techn

Outcome

<p>This is a submission for the Hacktoberfest Weekend Challenge: Build for a Friend (<a href="https://dev.to/challenges/hacktoberfest-weekend-2026-10-01">https://dev.to/challenges/hacktoberfest-weekend-2026-10-01</a>)</p> <p>What I Built<br> My college friend has been prepping hard for campus placements. He can solve LeetCode problems easily, but in real interviews he freezes up when he has to explain systems concepts out loud. Existing AI tools charge subscriptions or make you wait seconds for every cloud reply, which ruins the flow. </p> <p>I built ColdMock so he can do rapid-fire oral techn

Evidence

ColdMock: Building an Autonomous, Zero-Cost Voice Interviewer for My College Peer

Source