I Built 3 Work-Saving Desktop Apps in 3 Days Using Google Antigravity – Here’s How

Hey dev community 👋 I'm hudy9x, a web app developer in Hanoi, and for the past few years I've been grinding on enterprise projects — the kind where budgets are tight, licenses are forbidden, and "just use VS Code preview" is the default answer to everything. But in February 2026, I decided to stop complaining and start building. Using Google Antigravity (the new agentic AI IDE powered by Gemini 3), I shipped three custom desktop tools in just three days that actually make my daily work better. No massive codebases. No weeks of setup. Just prompts, a bit of polish, and publish. Here's exactly what I built — and why this changes everything for solo devs and teams on a budget. Quick context: My day job pain points I work on a big web app project. Every sprint includes: Writing PlantUML and Mermaid diagrams for basic + detailed design docs Managing Docker containers (but company banned licensed Docker Desktop) Letting testers browse S3 buckets without giving them full AWS console access Pa