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Harry Ludemann

📍 Wellington, New Zealand

Shipping a Booking-First Website for a Solo Car Detailer

Supabase (RLS + RPC + constraints) + React (wizard UX) + Vite (fast shipping) A friend of mine is starting a car detailing business on the side. The brief sounded simple: > “Can you make me a website?” But for a solo service business, a website isn’t a brochure. It’s an operations

Building Software for a Physical Game

I’m not a frequent airsoft player, but when I did play, something stood out quickly: the games often lacked clear feedback. Objectives were completed, timers expired, rounds ended—but players weren’t always aware of it in the moment. When a game relies entirely on verbal communication and memory,

Building Modular Penetration Testing Tools with Ngoto: A Deep Dive into Plugin Architecture and Concurrent Execution

Penetration testing workflows involve executing dozens of specialized tools across reconnaissance, enumeration, exploitation, and post-exploitation phases. Managing these tools—each with unique invocation patterns, output formats, and configuration requirements—creates friction that slows testing and increases cognitive load. Ngoto addresses this problem through a plugin-based framework built on three core

Building a Production-Ready ALPR API with FastAPI and Docker

Automatic License Plate Recognition represents a challenging computer vision problem that requires both accurate object detection and robust optical character recognition. New Zealand plates introduce specific technical challenges including varied formats, reflective materials, and regional character sets that demand careful model selection and validation logic. This article examines the technical

Scalable Resource Management with HikariCP and Selenium Grid

Modern software systems are expected to scale efficiently while maintaining predictable performance under load. Two areas that frequently become bottlenecks in backend and automation-heavy applications are database connectivity and browser-based testing infrastructure. This article demonstrates how to address both concerns using HikariCP for efficient database connection pooling and Selenium Grid