Complex sentence: It is also a virtual reality headset that claims to be open-source hardware and use open-source software, however as of October 2016 electrical hardware and firmware source files have not yet been made available.
Split into simpler sentences: It is also a virtual reality headset that claims to be open-source hardware and use open-source software. However, as of October 2016 electrical hardware and firmware source files have not yet been made available.