> ## Documentation Index > Fetch the complete documentation index at: https://docs.fastshot.ai/llms.txt > Use this file to discover all available pages before exploring further. # Starting a Project > How to create a new mobile app from scratch ## Describe your app Open the editor at [fastshot.ai](https://fastshot.ai) and type a description of the app you want to build. Include: * **Purpose** — what the app does and who it's for * **Screens** — list the main screens (home, profile, settings, etc.) * **Data** — what kind of data the app works with * **Design** — colors, style, mood (e.g. "dark theme with blue accents") Be specific. "A fitness tracker with workout logging, progress charts, and a dark theme" produces much better results than "make me a fitness app." ## Optional: add visual context You can attach additional context to your first message: * **Reference images** — upload screenshots or mockups to guide the design * **Website URL** — paste a URL and Fastshot will analyze the site's design, colors, and layout to inspire your app * **Moodboard images** — upload photos that capture the aesthetic you want ## What happens next After you send your description: 1. **Clarifying questions** — the AI may ask 1-2 questions to understand your requirements 2. **Planning** — architecture, screens, navigation, and a design system (colors, fonts, spacing) are created 3. **Code generation** — production-ready React Native + Expo code is generated (about 5-7 minutes) 4. **Live preview** — a working preview appears in your browser You'll see progress updates as each stage completes: * Setting up template * Starting mobile preview * Starting AI agent * Fine-tuning for your project ## After creation Once the preview loads, you can: * Test the app in your browser * Scan the QR code to test on a physical device with [Expo Go](https://expo.dev/go) * Send follow-up messages to make changes Each project gets its own isolated environment with version control, so you can always roll back if needed.