I think the author of the article just wanted to get out the soldering iron.. as otherwise a few minutes on a search engine would have revealed the existence of

I think the author of the article just wanted to get out the soldering iron.. as otherwise a few minutes on a search engine would have revealed the existence of the CMOY headphone buffers and a plethora of similar devices for laptops and phones already out there, including ones with their own high quality DACs.. unless there is something I'm missing here?