Blog Posts

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• 2023-04-17 – How to create a bar chart from a CSV file with Haskell
• 2020-05-02 – Control a LEGO Code Pilot, Scout, or MicroScout via Swift Playgrounds on iPadOS
• 2019-11-28 – RosettaGit - Solutions to tasks in more than 700 programming languages
• 2018-09-12 – uku - A Haskell CLI tool to display Ukulele fingering charts
• 2016-05-16 – fold - Wrap lines to fit in specified width
• 2016-05-09 – cal - Display a Calendar in Your Terminal
• 2016-05-08 – Command Line Monday
• 2015-10-29 – How to Extract Data from iOS Apps on MacOS
• 2015-10-21 – Germany — You have failed the metric system
• 2015-04-29 – Git's Prayer
• 2015-04-26 – How to Download GitHub Issues from the Command Line

Projects

• Airsequel

  Airsequel automatically generates a full fledged GraphQL API, a spreadsheet UI, and a SQL workbench for your SQLite databases and CSV files.

• RosettaGit

  RosettaGit presents solutions to coding challenges in as many programming languages as possible. Started out as a fork of Rosetta Code.

• TaskLite

  Full fledged CLI task manager built with Haskell and SQLite. I repeatedly lost tasks with Taskwarrior due to bugs and syncing issues and wanted something with a better workflow.

• Feram

  I co-founded Feram in 2017 and initially we developed a code liniting service until early 2019. It let developers find bugs in their code by automatically checking every commit with several dozen linters & code analysis tools. Afterwards it transformed into a software agency and is now the legal entity behind Airsequel.

• educatopia

  I started Educatopia in 2013 during university because I was annoyed that there was no simple wiki like platform to share exercises (plus hints & solutions).

• Shaven

  A DOM building utility and template engine where the virtual DOM is represented as nested arrays.

• Fakesome

  Create fake data to populate databases, build API prototypes, train neural networks or generate names for your cats.

• Timeomat

  Clock, Alarm, Stopwatch & Timer. All in your Browser.

• Schifferpatent

  When I trained for my sailing license for Lake Constance in 2011 there were no good resources available except expensive books, so I built a website. I also started to build an English version: sail-guide.com

• bitcoinate

  Add a button to your website to display your Bitcoin address in order to receive donations.

• vectual

  A simple to use charting library originally implemented in JavaScript, but which I recently started to reimplement in elm.

• Life Is Short

  A short reminder how precious each week of your life is.

• UTCify

  Simple online converter to convert all date formats to UTC

• CSStab

  A simple documentation page listing all CSS properties and selectors.