Installed on ReadyNAS NV+ v2 (ARM) without a problem. It works great. 1. Download Linux ARM compressed binary btsync_arm.tar.gz 2. scp file to root directory on ReadyNAS. 3. ssh to ReadyNAS, uncompress and untar the binary. 4. Load BTSync by typing ./btsync at command line. 5. Append "/root/btsync" to /etc/rc.local for automatic load on restart. (untested) 6. Accessed the GUI via http://<ReadyNAS IP>:8888/gui/