Crypto Trading Website & App

I’m looking to get an initial MVP built for a combined stock- and crypto-trading service. At this stage I only need the basics in place so I can validate the idea and show it to early users.

Here’s what I want delivered:

• A simple web front end that lets people sign up, create user profiles, and view a placeholder “portfolio” page.
• Companion mobile builds for both iOS and Android produced from the same codebase (React Native, Flutter, or another efficient cross-platform framework).
• Core social features: user profiles, a direct messaging system, and lightweight content sharing (think short text or link posts).
• Clean, modern UI with dummy market data for now—actual trading and real-time feeds will come later, so just wire in mock data endpoints and make sure the architecture allows future expansion.

Please keep it lean: focus on solid scaffolding, clear navigation, and code that’s easy for another dev to extend. Source code and brief setup instructions are the final deliverables.