Various free software projects are helping me getting things done (or helped me getting a degree at university). I’m very grateful for all the great software, so I like to give something back when I find a bug or need some functionality that doesn’t exist yet.

Here’s a – probably incomplete – list of projects I contributed to:

C

• AODV-UU, a userspace routing daemon for wireless multihop networks (adjusting to API changes in the Linux kernel)
• batman-adv, a kernel space (Linux) routing protocol for wireless multihop networks (multiple patches; adding functionality, fixing bugs)
• Dallas Temperature Control Library (cleanup)
• LightDM, the X display manager used by Ubuntu (bugfix)

C++

• boost, the de-facto extended standard library (bugfixes for boost::optional and boost::filesystem)
• Botan, a crypto library (added Android and iOS support, improved compatibility to MSVC++, bugfixes)
• curlcpp, a C++ wrapper for cURL (bugfixes)
• Cpp-Markdown, a Markdown to HTML renderer (bugfixes)
• Djinni, a interface binding generator for C++ to Java and Objective-C (bugfixes)
• SmartSqlite, a C++ wrapper for SQLite (founder and primary contributor)

Go

• go-restful, a REST framework for golang (bugfixes)

Java

• Jakstab, a static analysis platform for binaries (bugfixes)
• jHaushalt, a personal budget tool (bugfix)

PHP

• Selfoss, a web-based feed reader (added some customized feeds and fixed bugs)
• Silverstripe, a CMS (bugfixes)

Swift

• SwiftMime, a MIME type mapping library (compatibility to newer language version)

Please also have a look at my GitHub repositories.