defnull

About me

Hi! I'm a software engeneer/developer from Germany, years old, got my master's degree in applied computer science from Georg-August-Universität Göttingen and am currently working on various data science and infrastructure related projects at GWDG.

Before we start: Do not contact me directly for job offers or support requests. If you need help or want to report bugs for any of my open source projects, please use the corresponding mailing-lists or issue-trackers.

Open Source Projects

Incomplete list of projects or ideas that I can call my own. There are a lot more small projects, contributions or experiments not worth mentioning here. Most can be found on github.

Bottle - Python Web Framework

Bottle is a fast, simple and lightweight WSGI micro web-framework for Python. It is distributed as a single file module and has no dependencies other than the Python Standard Library.

• bottlepy.org
• github.com/bottlepy/bottle
• pypi.org/project/bottle

Pixelflut - Multiplayer canvas

Pixelflut is a very simple (and inefficient) ASCII based network protocol to draw pixels on a shared screen. It works great as a group activity for novice programmers due to it's low entry barrier, or as an interactive and very chaotic art installation at hacker events. If you have a beamer or LED wall, a solid network, and a bunch of hackers, give it a try. It's fun.

The idea was born at EasterHegg 2014 and evolved into a recurring part of most CCC events since then. Pixelflut really developed it's own live and now there are dozens of server and client implementations available. Reddit came up with a similar idea in 2017 with /r/place and scaled it to thousands of global users.

• cccgoe.de/wiki/Pixelflut
• github.com/defnull/pixelflut

Fediwall - Social media wall for the Fediverse

Fediwall is a social media wall made for Mastodon. Follow hashtags or accounts and show the most recent posts in a self-updating, screen filling and visually pleasing masonry grid layout. Put it on a large screen and showcase community feedback or social media reactions while hosting your next big event, or use it to look at cat pictures all day. Your choice.

• fediwall.social
• github.com/defnull/fediwall

Misc and More

• multipart - Python multipart/form-data parser
• contexter - A better contextlib for python
• pycdstar3 - Python API client for GWDG CDSTAR
• More on github ...

Work Related Projects

Most recent projects are work related. These are still mostly open-source and public, but not personal so I won't list them here as 'my' projects. If you are interested in what I do for a living, just ask.