What you need for this book

You need Redmine installed, or a server (virtual or physical) so that you can install Redmine on it. If you are going to experiment with various recipes, then it's best to use some virtualization software, such as VMware, hyperV, or virtual box. Install a clean operating system (Linux or Windows), clone it, and start your work so that if you break something or want to try something else you don't have to start installing the operating system again, but simply clone the virtual machine.