Can a Dev Dad Vibe Code AI SaaS/Marketplace with Gemini 3 | Day in the Life

Can a Dev Dad Vibe Code AI SaaS/Marketplace with Gemini 3 | Day in the Life My busy day building an AI SaaS/Marketplace app as a Ghanaian Dev Dad, using Gemini 3 to code the login and refresh token system in this realistic day-in-the-life dev vlog. This is EP 002 of the series, picking up from EP 001. Today I’m focused on authentication: handling access and refresh tokens, fixing bugs, and testing the whole flow so the app feels closer to production ready. Between school runs, remote work, and family time, I’m trying to move the product forward one feature at a time. Setup: IDE: Antigravity with Gemini 3 (some Claude Opus 4.5 when Gemini reaches Limit) Research: AI Studio Related Topic: I Built an AI app with Gemini 3 Pro (no code / beginner / easy) Gemini 3 Pro is Here: How to Use AI Agents in Gemini Building with Gemini 3, AI Studio, Antigravity, and Nano Banana | The Agent Factory Podcast #gemini #antigravity #vibecoding