Yongchivo
Projects
A selection of academic, personal, and upcoming projects across cyber security, web, mobile and game development.
Cyber Security & Forensics
Personal Portfolio with Security Hardening

Personal Portfolio with Security Hardening
LIVE

The site you are reading right now. Built with Astro, Tailwind and Cloudflare Pages, with continuous deployment from GitHub. Hardened HTTP security headers from grade D to A on securityheaders.com by configuring HSTS, Content-Security-Policy, X-Frame-Options, Permissions-Policy and other defences.
Mobile & Web Development
PHV Prep UK — iOS Exam Prep App

PHV Prep UK — iOS Exam Prep App
LIVE

My first app submitted to the App Store: exam preparation for the Wolverhampton private hire vehicle ("taxi badge") licensing test. 300+ practice questions, realistic timed mock exams that mirror the real exam's pass logic, and an AI tutor for UK taxi law. Built solo with Flutter and Firebase (Auth, Firestore, Cloud Functions, europe-west2). Security-focused: server-side StoreKit 2 purchase verification, the Anthropic API key kept entirely server-side in Secret Manager (never shipped in the client), Firestore rules locking premium status to the backend, and content-safety controls on the AI feature.
MyLocation — Android App

MyLocation — Android App
COURSEWORK

A location-aware Android app backed by Google Firebase, with user authentication and real-time data storage to sync locations and events across devices. Built in Java/Kotlin as part of the Mobile Application Development module.
Game Development & Systems
BlackDogHunter — 2D Game

BlackDogHunter — 2D Game
COURSEWORK

A complete 2D game built in Unity with C#, covering game mechanics, sprite animation, scene management and level design. Originally developed as a group academic project where the deliverable was a team report — the codebase itself was built from scratch by me.
University Kiosk Operating System

University Kiosk Operating System
COURSEWORK

A locked-down kiosk OS based on Ubuntu, with auto-login, restricted user environment and start-up scripts to deliver a reliable single-purpose public terminal. Built as part of the Operating Systems module to explore Linux administration, security policies and system hardening.
© 2026 John Akhis Moreno (Yongchivo)
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