Overview

KangKeliling was born out of a desire to support local street vendors (UMKM Keliling). Developed during the Garuda Hacks 5.0 Hackathon, this app solves a simple problem: "Where is the Satay man right now?"

As the Project Lead, I oversaw the full-stack development of a prototype that enables users to track vendors on a live map.

Core Features

1. Real-time Vendor Tracking

Using Supabase Realtime capabilities, vendors verify their location which is instantly broadcasted to nearby users. This dynamic map display removes the uncertainty of waiting for mobile vendors.

2. Geolocation Logic

We implemented the Haversine Formula to calculate precise distances between users and vendors. This ensures that search results are relevant and sorted by proximity.

3. Vendor Profiles

Users can view vendor menus, ratings, and current status, helping small businesses build a digital presence without the overhead of major delivery platforms.

Challenges

The biggest technical hurdle was optimizing live location updates to not drain battery on vendor devices while maintaining accuracy. We balanced update frequency and used efficient Supabase subscriptions to solve this.

Impact

KangKeliling represents a fusion of technology and social impact, providing a digital lifeline to the informal economy sector.