Now that you have a working chroot debian, it is now time to install a bt client. There is a lot of bt client out there but transmission is one of the best one due to its low memory footprint and low resource usage. In this post, I will explain on how to install transmission bt.
Login to your NAS using Putty. In the linux shell, run these command. These files/program will help you compile and build the transmission program from its source code.