THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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1. Install ruby and sass on your machines. Instructions can be found here: https://www.ruby-lang.org/en/documentation/installation/ and http://sass-lang.com/install.
2. Test it whether you installed both successfully.
3. Clone the repo with: git clone https://git-wip-us.apache.org/repos/asf/incubator-netbeans-website.git (Or via NetBeans itselfs: Team -> clone OR Team -> remote -> clone.)
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