Welcome to my personal blog with main topics Android, Linux & Open Source!

I am doing software development in many areas, with my main fields of experience being cross-platform software (C++/Qt) and Android apps (native). In development teams I'm usually responsible for managing development services, setting up CI/CD jobs (usually paired with Bash/Python/Ruby scripts) and keeping everything uptodate.

Open Source is one of my passions -- I am a developer and maintainer of many open projects and regularly start contributing to additional ones. Support me on my mission! My other favourite activities include photography and being outdoor as much as possible. I am too volunteering at the local fire department. I went to school at HTL Braunau (Electronics / Software Engineering & Mobile Computing) and studied Mobile Computing at FH Hagenberg. I'm employed at Felgo as software engineer.

Projects and publications

Here are some public available projects I contributed to, maintained or developed.

Markor [Android, Java]

Text editor - Notes & ToDo (for Android).
Supporting Markdown and todo.txt

πŸ“ Create notes and manage your todo list by using simple markup formats
🌲 Works completly offline, always ready when and whereever needed
πŸ‘Œ Interoptable with any other plaintext software on any platform

πŸ“š Notebook: All documents are stored on a common filesystem folder
πŸ““ QuickNote: Quickly share into a fast accessible Markdown document
β˜‘οΈ To-Do: Quickly share into your fast accessible ToDo list
πŸ”– LinkBox: Share pages to read later into your bookmark list
πŸ“‹ Copy to clipboard: Copy any text, text shared into Markor can be directly copied too
πŸ’‘ Notebook is the root folder of documents and can be changed to any location on filesystem. LinkBox, QuickNote and ToDo are textfiles

GitHub | F-Droid | Google Play

MemeTastic [Android, Java]

Simple Meme Creator which allows to download most common templates. Completly ad-free, and adds no watermarks.
Memes can be created from templates downloaded from the MemeTastic archive, from pictures shared into the app and pictures from gallery & camera.

There are many meme customization options available:
πŸ˜„ Top & bottom caption
πŸ˜ƒ Font & border text color
😁 Text size, font and capitalization
πŸ˜ƒ Padding size & color
😜 Rotate picture

More Features:
πŸ‘“ Show favorites & saved memes
πŸ‘‰ Share into any app accepting pictures

GitHubF-DroidGoogle Play

dandelion* [Android, Java]

Client for the community-run, distributed social network diaspora*.
It adds useful features to your networking experience:

⚑ Quick access to most diaspora* features
πŸ‘‰ Share content to and from the app
🌎 Proxy support
πŸ“° In-app-browser to view articles
🎨 Customizeable colors
πŸŒ† Night/AMOLED mode
🈴 Localized in many languages
βœ”οΈ Allows system independent language


OpenLauncher [Android, Kotlin]

Open source Android launcher project, started from scratch. The aim is to create a powerful and community driven launcher for Android.


  • Paged desktop || Dock || Double tap to sleep
  • Dock || Scrollable background || Drag and drop
  • Paged, Vertical app drawer || Hide apps
  • Search bar || Icon packs || Widget Gesture
  • AIO Search Bar || Gesture support
GitHubF-DroidGoogle Play

Bachelor thesis

VerΓΆffentlichung von Open Source Software anhand einer Android App

  • Open Source in general
  • Version control systems
  • Platforms for Open Source Software
  • Open Source Community
  • Publishing OSS Android Apps
  • Open Source licenses
  • Implementation of the Froody project

Blog Post / Download


Froody [Android, Java, PHP]

🍎 Lets you share (mainly naturally growing) food to others
πŸ’ Intended to use in the local area - zoom in to your location and look for entries
🍐 The main idea is to share to and help other people by e.g. sharing pears, which would rot anyway if unused
🌽 Everyone can add entries (and delete them), no login needed
πŸ‡ Entries are available 60 days
πŸ… Translated into 20 languages and

Project discontinued since spring 2018.

Stringlate [Android, Java]

Fetches remote Git repositories containing the source code for Android applications, downloads the available strings.xml files in them for you to translate the strings to any other locale, in order to help the authors localize their applications into other languages.

Project discontinued in 2019.


Kimai Android [Android, Java]

Client for the time managment software Kimai. This app makes mobile tracking and logging into your kimai existing installation easier. If you want to be auto logged in after application start check the appropiate box.

Usually you have to open your browser, open bookmarks, click your kimai page, input data, press login, and then start tracking. Now you only have to do the last step every time you want to add entries.

GitHubF-DroidGoogle Play

Support me

If you like my work or just want to spend me coke beer or coffee, consider a small appreciation via

I’m too active on Battle.Net + Steam and always happy to give (old-) new games a try. If available I prefer to play Open Source or DRM free games, e.g. from Humble Bundle and alikes.

  • If you plan to signup for Humble Monthly you can use this referer link, which gives me free credits if you subscribe.
  • Let me know if you want to get started with some Blizzard game, I will gladly send an invitation (benefits for both).


Currently I am mostly developing things with C++, Java, or Bash. As my main desktop OS is based on Linux I always try to build things crossplatform. On the mobile side my main focus is on Android. I am also working a lot on servers and development services, here I use serveral languages/frameworks mostly combined with Bash scripts. For embedded/IOT development I mostly work with Atmel or ARM based platforms (Arduino, AVR, Raspberry Pi, i.MX, ..).

Here are some more platforms, frameworks, services and technologies I used for development:

  • Java, Android
  • C++, Qt
  • F-Droid, OpenStreetMap, osmdroid
  • Bash, Go, Python
  • MySql, PostgreSQL, Sqlite
  • C, Β΅C(Atmel), Arduino
  • C#, Mono, Unity, Windows Phone 8.1
  • PHP, HTML, CSS, JS, Node.js
  • REST WebServices, Swagger
  • JSP/Servlets, Slim PHP, Flask
  • LaTex, Liquid, Markdown
  • iOS, Swift

  • CircleCI, Jenkins, GitLab CI, Travis CI
  • GitHub, GitLab, Gitea/Gogs, Bitbucket
  • Bugzilla, JIRA, Trac

  • Atom, Eclipse, Vim, Qt Creator, Unity
  • Visual Studio, Mono Develop, X-Code
  • Android Studio, IntelliJ, PyCharm, PhpStorm

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Writing apps and blog posts makes me hungry and thirsty! Do you like what I do? Want to help so I can keep doing work on this blog and free & open source applications? Consider a small donation! Spend me a burger and beer via LiberaPay or PayPal!