2024·Weather intelligence platform·Solo developer

WeatherSync

Full-stack weather intelligence app with AI-generated summaries, real-time radar, air quality, pollen data, and smart push notifications.

Overview

WeatherSync delivers hyper-local weather with personalized activity recommendations. Features AI-generated summaries via OpenAI and Gemini, interactive radar maps, air quality and pollen indices, Android widgets, and multilingual support across five languages.

Highlights

— AI-generated weather summaries using OpenAI and Gemini.
— Real-time radar, air quality, and pollen tracking.
— Smart push notifications with personalized triggers.
— Android home screen widgets for at-a-glance forecasts.
— Multilingual support: EN, FR, DE, RO, ES.

Features

AI Summaries

· Natural language weather summaries via OpenAI.
· Gemini-powered activity recommendations.
· Context-aware based on user preferences.

Real-time Data

· Interactive radar maps.
· Air quality index with health guidance.
· Pollen forecast by type.

Smart Notifications

· Personalized weather alerts.
· Activity-based triggers.
· Severe weather warnings.

Technical Details

Architecture

· pnpm monorepo with shared packages.
· tRPC for end-to-end type-safe API layer.
· Redis caching for forecast data.

Mobile app (Expo)

· Tamagui for cross-platform UI components.
· Zustand + React Query for state and data fetching.
· Android widgets via native modules.

Observability

· Sentry for error tracking and performance monitoring.
· PostHog for product analytics and feature flags.
· Structured logging across all services.

Stack

React Native (Expo), Tamagui, Zustand, React Query, Express, tRPC, Redis, Sentry, PostHog