A fleet tracking platform: a live map of every vehicle, trip replay coloured by speed, per-vehicle engine and sensor readings, geofences, an alerts inbox, and a fuel view that sets litres bought against litres burned to show where fuel goes missing. It works as well on a phone as on a desk.
Demo credentials are available on request.
Real-time temperature monitoring for vaccine cold chains, from national warehouses down to health facilities, so vaccines stay potent to the last mile.
coldtrace.org · 
ColdTrace Transport · ColdTrace on Google Play
Pest Monitoring & Surveillance of Tomato: an Android app that uses machine learning on satellite imagery to flag tomato farms likely to be hit by pests. Farmers, agrodealers and extension officers get pest alerts, an agrodealer finder, farm maps and buffer-zone maps. Paid features are gated by a list of feature keys from the backend, so moving a feature between tiers needs no app release.
Google Play · Figma prototypes: extension officer, farmer, onboarding
A payments dashboard for businesses. They sign up with their registration details, request payments over M-Pesa into a Peapay wallet, track and export transactions, schedule transfers, and manage their clients and staff. Built in Angular with NgRx for state.
A digital magazine for the geospatial industry in Africa: articles, daily news, issues, events and a member directory. An Nx monorepo with an Angular SSR frontend and a Strapi CMS, deployed with zero downtime behind Traefik. I wrote up how it is built in a three-part series.
Simple, encrypted video meetings from any device, on a self-hosted Jitsi Meet stack with room for up to 1,000 people on a call.