are you a native speaker of Dutch? Would you like to improve LanguageTool's support for Dutch? Then please consider contributing. You could become the new maintainer for Dutch, responsible for the error detection rules, the user interface translation, and the Dutch part of our homepage.
You'll get your name listed on http://languagetool.org/languages/, a free IntelliJ Ultimate license for your work on LT, and an email address 'firstname.lastname@example.org'.
Let me know if you're willing to contribute. The previous maintainer, Ruud Baars, will also be there to help.