More than 5.500 extension exist currently for TYPO3 CMS (12/2012). With them TYPO3 CMS can be extended in any order.

Currently I know a lot of extensions just like that, and so I can fit them to existing conditions and wishes of my clients. Is something not configurable by TypoScript or Flexforms, I can work directly in the code.

Since 2008 I'm also writing own extensions. That makes sense, especially if the wishes of my clients are too individual or a fitment of existing extensions would takes longer than a new development.

During extension development my quality claim is high:

• not less than bilingual labels in backend (German, English)
• not less than bilingual texts in plugins or modules (German, English)
• configuration by the Constant Editor or Flexforms
• preconfiguration by static TypoScript inclusive CSS stlyes
• tab menues for major datasets
• consistent use of the TYPO3 API
• fitment of the RealURL configuration to the extension
• XHTML template for an easier formatting

I present several of my extensions in the area References.