Hadouken is a BitTorrent client written in C# and designed to run as a Windows Service. It has plugin support and is managed completely through a web UI.
All development is done in the develop branch using the Git Flow extension (with default settings).
You need Ruby installed to build from source. Install Ruby, then run gem install bundler, bundle install and lastly rake to build. This will build zip and MSI packages for both x86 and x64 architectures.