Heres a Beta Release of a Nintendo Switch Emulator for Windows, heres the release notes:

Ryujinx Git (2018/03/13) is complied. Ryujinx is a Experimental Switch emulator written in C#. Don't expect much from this. Some homebrew apps works, and Tetris shows the intro logos (sometimes) but that's about it for now. Contributions are always welcome.

Ryujinx Git changelog:
* IAudioDeviceService -> IAudioDevice
* Fix GetAudioRenderersProcessMasterVolume which was totally wrong

more info