Unfortunately, although my original advice is correct (to make something run on the Humax it needs to be in compilable form), there are other barriers. In particular, we have no access to the output devices to be able to generate a sound stream and send it to the sound output (SCART, Phono, optical, or HDMI). In general, there is very limited processing power and RAM.
Realistically, your only options here are if the Logitech server will stream a compatible file by DLNA, or mount on the network as a virtual USB drive.