Actuary/Mathematician, Singer, Software Developer
Actuary/Mathematician, Singer, Software Developer

Open Source Software

Over the years, I have contributed to many open source projects. The following list gives a (not neccessarily complete) overview of my contributions:

  • 2021: Admidio: Several improvements
  • 2018-…: R packages: Contributions to openxlsx, Author of MortalityTables and LifeInsuranceContracts
  • 2016-2017: MySensors: Several improvements and device support in NodeManager
  • 2016-2017: ESPEasy: Plugin for RFLink devices and my own VentaConnected board
  • 2012-2018: VirtueMart: Core patches to Virtuemart and plugins for the webshop software
  • 2010: CUPS foo2lava printer driver: command filter to display supply status
  • 2010: pae2xml (Plaine & Easie to MusicXML converter): Full support for the whole Plaine & Easie specification
  • 2007-2014: LilyPond (GNU music typesetting software): Several new features
  • 2007-2014: musicxml2ly (MusicXML to LilyPond converter): Many enhancements
  • 2005: SANE scanner driver for Konica Minolta magicolor 1690mf
  • 2004/05: curator (image gallery generator): various enhancements
  • 2000-2008: KDE: KOrganizer maintainer, libkcal , KPilot, holiday editor, etc.



Other interesting projects by me: R packages (2013-…)R packages for Mortality tables and Life insurance contracts, both available on CRAN. WooCommerce and […]