Luna Travel

Luna's hidden route

About the project

Luna Travel started from a simple insight: exploring Google Maps alone is fun at first, but it can become boring quickly. I wanted a conversational travel companion that makes it feel like you’re traveling with someone, not just browsing a map. And to make the experience feel “real,” I thought: if we capture the moment and synthesize a photo, it can turn a virtual trip into a memory that looks tangible.

What Luna does

Watches the live screen context and responds in real time
Guides exploration with voice (via screen sharing and map context)
Uses tool-calls to drop pins and move the map automatically
Creates “travel memories” by composing user photo + Luna + destination backdrop

How it’s built (high level)

Frontend: React + Vite + Tailwind + @vis.gl/react-google-maps
Backend proxy: Node.js (Express) + WebSocket bridge with heartbeat
AI: Gemini Live (live multimodal chat) + Gemini 3.1 Flash Image Preview
Voice: Google Cloud TTS (Neural2 Korean voice)
Persistence: Firestore + (optional) lightweight local cache
Storage: Google Cloud Storage for synthesized photos

Challenges I faced

Getting Antigravity live chat stable took time because of outdated guidance and model confusion
Wiring voice intent into reliable map controls (pin, navigation) was harder than expected
Co-editing/code generation sometimes caused accidental deletion, forcing me to redo work
Latest features sometimes move faster than what the assistant knows, so I had to verify docs myself