Gruppetto

Multi-platform group ride coordination system.

What it does

Coordinate group cycling rides across six platforms. Create rides, import routes from Strava or RideWithGPS, manage RSVPs, and track riders in real-time via beacon location sharing. Works on web, iOS, Android, and cycling computers.

Features

• Real-time beacon tracking with distance and ETA calculations
• Route import via Strava and RideWithGPS OAuth
• Native iOS (SwiftUI) and Android (Jetpack Compose) apps
• Hammerhead Karoo extension with custom data fields
• Garmin Connect IQ app for wearables
• RFC 8628 device authorization for headless devices
• Magic link and password authentication
• Recurring ride scheduling
• Invite system with secure access keys

Tech Stack

• Go / Chi / sqlc / PostgreSQL (API)
• Go / Chi / html/template / HTMX (Web)
• Swift / SwiftUI (iOS)
• Kotlin / Jetpack Compose / Hilt (Android)
• Kotlin / Karoo SDK (Hammerhead)
• MonkeyC (Garmin Connect IQ)
• Server-Sent Events for real-time updates
• Just for multi-project build orchestration