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Development Portfolio

Examples of my development journey, featuring full-stack web apps, desktop applications, and game projects
TerraHunt Server
Screenshot of TerraHunt Server
PHPNetteMySQLJavaScriptVueTailwindBootstrapLatte

TerraHunt is a platform for creating and playing GPS-based outdoor and virtual treasure hunts, team-building activities, and educational games. I am developing the backend system using PHP and the Nette framework. While the user and management interfaces were originally built within Nette using Latte and Bootstrap, the successor interface is built from scratch using Vue, Tailwind CSS, and PrimeVue.

Martin Ricky Holaň | WWW
NuxtTypeScriptVueTailwind

This website serves as a personal digital showcase of my work and professional background. Built with Nuxt and Nuxt UI, the site features full internationalization (i18n) support and a modern dark mode interface. It is hosted on Cloudflare Pages and utilizes a serverless worker to process contact form submissions via the Resend service.

Down The Pipe
Screenshot of Down The Pipe
C#Unity

Down The Pipe is my first fully completed game, developed entirely from scratch without the use of any third-party assets. While the art style is simple, I personally created all models, shaders, visual effects, sound effects, and even the music. Originally designed for Android, the game has since been ported to an HTML5 version.

SpiceApp
Screenshot of SpiceApp
C#MAUI

An easy-to-use desktop application designed for the "silent" printing of spice labels. Users can print directly to a label printer by simply selecting a tile representing the specific spice and entering the desired quantity. This is proprietary software, custom-tailored to the specific operational needs of Koření od Davídka s.r.o.

DPHApp
Screenshot of DPHApp
C#AvaloniaUI

DPHApp is a specialized financial application designed to streamline consolidated tax reporting for corporate groups in the Czech Republic. Czech law allows a "parent" company to submit unified tax reports for all subsidiary companies under a single tax ID. DPHApp automates this by merging XML tax reports from multiple child companies into a single, consolidated filing. Specifically, the app generates unified VAT Control Statements (Kontrolní hlášení DPH) and VAT Returns (Přiznání k DPH). I chose C# for its robust XML processing capabilities and built the interface using AvaloniaUI. While currently optimized for Windows, the architecture supports a planned expansion to macOS.

"Perfection has been reached not when there is nothing left to add, but when there is nothing left to take away."

~RFC1925

Martin Ricky Holaň © 2026