Complex sentence: A purpose of the Yoshimi project has always been to optimize in parallel with ongoing development of ALSA and JACK under GNU/Linux; it is therefore highly optimized for these on Linux, and is not available for other operating systems.
Split into simpler sentences: A purpose of the Yoshimi project has always been to optimize in parallel with ongoing development of ALSA and JACK under GNU/Linux. It is therefore highly optimized for these on Linux, and is not available for other operating systems.