NONOS: Open-source, privacy-first Sonos alternative that actually sounds good

Would be super interested to know how they make use of the Analog Devices ADAU145x. DSPs feel like one of those places that's been utterly resistant to open source & shared knowledge (bitterly ironic given that the underlying sound engineering math is so literally textbook).

Also wish there were something like Open Screen Protocol available for casting to it. With the rpi on board that's actually feasible? https://w3c.github.io/openscreenprotocol/

Last, the atopile hardware design tool seems interesting, hadn't run into it before. The docs only give me a loose idea of how to works, but turning code into Kicad designs is a cool idea, especially if the re-use really does work out. Recent atopile submission and general search: https://news.ycombinator.com/item?id=44548449 https://hn.algolia.com/?q=atopile

I will never understand why Sonos puts a tweeter in their speakers, but then configure their master chain in a way that it’s basically off. Wonder if they did some focus group testing and people seemed to associate lacking highs with “premium” sound or something.