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@redaxo @propelorm @stomp-php @FriendsOfREDAXO @jquery-validation @sabre-io


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@itsgoingd @OskarStark @localheinz

Hi there 👋

My name is Markus and I am a open source enthusiast since 2010 .

Most of the time I am working on the REDAXO CMS, focusing on latest web features and security. For 2 Years I was also maintainer of the popular jQuery Validation library.

For fun and educating myself I also actively contribute to various projects - filp/whoops, sabre/dav, stomp-php, propelorm - to name a few of them.

I am curious and reading a lot regarding latest web technologies, web standards and browser development. My passion is working on performance problems and figuring out crazy bugs 🐜.

In case I was able to help you out with my contributions in the past, please consider supporting my work with your sponsoring 💕





  1. sabre/dav is a CalDAV, CardDAV and WebDAV framework for PHP

    PHP 1.1k 294

  2. jQuery Validation Plugin library sources

    JavaScript 10k 2.9k

  3. PHP errors for cool kids

    PHP 12.2k 570

  4. sabre/xml is an XML library that you may not hate.

    PHP 414 73

  5. REDAXO, a PHP-based CMS since 2004. Both simple and flexible.

    PHP 262 102

  6. Annotate a GitHub Pull Request based on a Checkstyle XML-report within your GitHub Action

    PHP 87 12

Contribution activity

January 2021

Created 3 repositories

Created a pull request in redaxo/redaxo that received 16 comments

be_style/customizer: color picker verwenden

bei benutzung des color pickers wird das textfeld aktualisiert. das textfeld ist immer führend, d.h. was dort drinnen steht gilt. closes #725 UI F…

+11 −1 16 comments
Reviewed 37 pull requests in 9 repositories
redaxo/redaxo 28 pull requests
sabre-io/dav 2 pull requests
stomp-php/stomp-php 1 pull request
phpstan/phpstan-src 1 pull request
vimeo/psalm 1 pull request
FriendsOfPHP/PHP-CS-Fixer 1 pull request
FriendsOfREDAXO/minibar 1 pull request
composer/composer 1 pull request
php/php-src 1 pull request

Created an issue in vimeo/psalm that received 6 comments

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