Technology Stack

Why this combination?

VibeFast is opinionated about one thing: moving from idea to production with the least amount of undifferentiated work. Every choice in the stack reflects that goal and is still flexible enough that teams with their own preferences can treat VibeFast as a clean sandbox or a reference implementation.

Next.js for web, SaaS, and full-product surfaces

Next.js is the most battle-tested platform for serious web apps right now. It gives you marketing pages, docs, dashboards, APIs, background routes, and SaaS portals in the same runtime. The VibeFast Next.js app can be the marketing site, admin console, or the full product experience you launch to customers. You get server rendering, streaming, and route-level control without introducing a second repo.

Expo + React Native for cross-platform mobile and shared UI

Expo accelerates React Native projects because it handles native tooling, dev builds, and OTA updates for you. It keeps iOS, Android, and AI-friendly workflows tight: most AI copilots reason better with Expo/React Native than other native stacks. Building on Expo means you ship polished mobile clients with minimal platform drift.

Convex—one real-time backend for every feature

Convex is the live, server-first backend for the entire stack. It hosts your database, auth, file storage, AI agents, and RAG helpers with realtime subscriptions out of the box. That makes it easy to keep the chatbot, analytics, payments, and web dashboards using the same data, agents, and business logic. Convex is open source, fast to iterate on, and keeps every platform in sync.

Monorepo to keep everything aligned

Having Expo, Next.js, and Convex in one workspace means you only need to think about one set of dependencies, one shared UI/system theme, and one backend. Shared packages (UI components, types, helpers) prevent copy/pasting logic between mobile and web. The biggest win is that Convex code never splits into multiple deployments—your backend lives in one folder, so every client calls the same APIs.

The VF CLI keeps this stack usable

All that power only works if it stays manageable. The vf CLI lets you initialize a Clean or Custom project (vf init), pick platforms (Native, Web, or Both), and toggle features with vf add/vf remove. No manual wiring across 20 files when you want to try a chatbot, image generator, payments flow, or tracker app. The CLI also records your license key so you can keep iterating without pain.

Even if your day-to-day stack is different, VibeFast gives you a fast sandbox for a new mobile + web project backed by Convex. Use it for experimentation, boilerplate-free prototyping, or as the backbone of a full SaaS product.