I’m using a pink faun I2s bridge from my diy streamer based on an intel xeon silver cpu.
I use the base I2s without upgraded clock with a wireworld starlight 7 into my holo may kte and previously into my ds. It is powered by a farad linear ps. The sound is better than using a sablon 2020 usb cable from the motherboard.
You have to be careful which cpu you use however, there is a history of the pink faun not playing well with some intel cpus.
I debated about the Pink Faun, but for the price, I built a Pi4 with Iancanada cards to directly output i2s to the DS - because I’m cheap.
Plus, I tried their bridge a few years ago, and just couldn’t get it to work even with a lot of back and forth with them. I eventually just returned it. Be aware though, I don’t think their product was truly fleshed out back then.