Antigravity + Gemini 3.1 Pro + Convex + Clerk = Full Apps INSTANTLY (FREE)

In this video I show you how to make FULL APPS instantly using Antigravity, gemini 3.1 pro (and flash) Convex, Clerk FOR FREE without paying anything

I've been working on this system for a while now and love how good it is and free to use basically so

thanks for watching and PEACE

Hamish

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In this video I show you exactly how to go from nothing to a full working SaaS MVP in under 30 minutes using only FREE tools. No paid APIs, no subscriptions needed.

The complete stack:
→ Antigravity (AI coding) — FREE
→ Gemini 3.1 Pro / Gemini 3 Flash — FREE via Google AI Studio
→ Next.js (frontend framework) — FREE
→ Convex (backend + database) — FREE
→ Clerk (authentication) — FREE
→ ShadCN (UI components, mobile-optimized) — FREE
→ V0 by Vercel (design generation) — FREE

This is NOT vibe coding. This is step-by-step, methodical building — setting up auth, database, importing designs, and shipping a real product.

🔧 What you'll learn:
• How to set up a Next.js + Convex + Clerk project from scratch
• How to use Antigravity with Gemini 3.1 Pro and Flash
• How to use Google AI Studio's new Build feature
• How to use V0 + ShadCN for mobile-optimized design
• How to transplant AI Studio projects into your codebase
• The exact deployment checklist (Digital Ocean/Hostinger + Cloudflare + PostHog)

Chapters:
0:00 Intro - Zero to MVP with Gemini 3.1 Pro FREE
0:29 Sponsor: HarborSEO.ai
1:10 Step 1: Create your project folder in Antigravity
1:25 Step 2: Set up Next.js + Convex
2:42 Step 3: Set up Convex project & dashboard
3:35 Step 4: Add Convex rules for AI context
3:55 Step 5: Set up Clerk authentication + JWT
5:21 Step 6: First prompt — Clerk + homepage + dashboard
5:53 Using Google AI Studio with Gemini 3.1 Pro
6:30 NEW: AI Studio Build experience (surprise update)
7:35 Gemini 3.1 Pro speed issues (use Flash instead)
9:23 Using V0 + ShadCN for design
10:47 Transplanting AI Studio code into your project
12:05 Switching everything to ShadCN components
13:05 Fixing the user creation bug (always happens)
14:05 Importing AI Studio project into Antigravity
15:22 Final result — full working app in ~20 minutes
16:23 Next steps: hosting, domain, launch checklist
17:38 Why PostHog over Google Analytics
18:01 Wrap up — step-by-step coding, not vibe coding

#Antigravity #Gemini31Pro #FreeAI #AIcoding #NextJS #Convex #Clerk #ShadCN #BuildWithAI #SaaS #FreeCoding #VibeCoding #GoogleAIStudio #V0

Видео Antigravity + Gemini 3.1 Pro + Convex + Clerk = Full Apps INSTANTLY (FREE) канала Income stream surfers