Hello, I'm
OBernosterer THomas
IT Specialist in Informatics · Linux Sysadmin · Self-Hoster · Gamer
In my corner of the internet there are a few little things. I have been writing "software" since 2015, back then Minecraft CraftBukkit plugins in Java, my first programming language.
About Me
I'm a gamer and self-taught. I don't just enjoy playing video games. I also love learning new technologies by building and breaking things.
From procedural, functional, and object-oriented programming languages to Linux servers, desktops, and Windows Server. Self-hosting with tools like Docker and Kubernetes all the way to networking with physical and virtual MikroTik routers. I have tried a lot of different things.
Technologies I work with daily
- Kotlin
- Java
- TypeScript
- JavaScript
- Vue.js
- Angular.js
- Git
- GitLab
- Linux
- IntelliJ IDEA Ultimate
- Docker
- Flutter/Dart
- Go
- Mikrotik RouterOS
Where I Work
IT Specialist in Informatics
Jan 2020 — Presentdekoster IT und Consulting GmbH · IT Service Provider
Development and maintenance of custom software solutions for clients, as well as myPassion.app, our solution from direct sales for direct sales. IT sysadmin and technical support for clients. Development lead for smartphone apps.
IT Technician
Sep 2018 — Presentdekoster GmbH · Jewelry Direct Sales from Austria
Responsible for everything with electricity. Whether PC, server, monitor, light bulb, or printer. Technical support for employees and sales partners.
IT Specialist Apprentice
Oct 2016 — Sep 2018bfi IT-L@B Villach · Apprentice Training Center
Apprentice as an IT specialist in informatics at bfi IT-L@B Villach in a trial education program: vocational school, company internship, and bfi IT-L@B.
Current Open Source Projects
KOsync
KOReader reading progress sync server with web interface. Written in Go with Vue. Since May 2026, also my first project with AI agents as a tool/helper.
- Go
- TypeScript
- Docker
- SQLite
- AI-Agents
Monster Adlist Utility
Program for creating DNS blocklists against advertising. Created for my Mikrotik RouterOS VPN in Singapore. Compatible with all DNS-adblockers or hosts file.
- Go
Ako
Flutter library with components for app development. Extracted from a client project at dekoster IT, whose development started as a leisure experiment.
- Flutter
- Dart
- Android
- iOS