Ulrich Emmerich
PHP developer · Linux admin · IoT enthusiast
For over 20 years I've been working with web development, Linux servers and home automation. php99.de is my personal tech blog — here I share knowledge, tools and hands-on experience.
Alongside the blog I run a small shop with PHP classes, scripts and guides I've built myself. Everything sold here is something I actually use in production.
PHP & MySQL
A lightweight framework built from scratch, no unnecessary dependencies. Code that works and stays maintainable.
Linux & Server
Debian, Nginx, SSH hardening, automatic updates. Servers that run without needing constant attention.
IoT & Home Assistant
Zigbee devices, automations, energy management. A smart home that's actually smart — without cloud lock-in.
DIY & Tinkering
ESPHome, custom hardware, 3D printing. If there's no product that fits, I build it myself.
Web Design & Frontend
HTML, CSS and JavaScript for the blog and shop — built and maintained by hand, no frontend framework, lean and maintainable.
Contact
Questions, feedback or product inquiries — feel free to email me:
I usually reply within 24–48 hours. For product support requests, please include your order number.
About php99.de
php99.de runs on a cloud VPS (Ubuntu). No CMS, no admin panel — just PHP, JSON files and Nginx. The original article texts are written by hand, from personal experience and research — AI is used exclusively to check spelling, current spelling rules and formatting before articles are deployed via SSH.