A Raspberry Pi 4 running RoPieee connected to your network via ethernet or WIFI. A DAC connected to the RPi4 using USB. Sound system connected to the DAC. Use your PC as Roon core with Roon RAAT to the RPi4 via your network.
You can get the RPi4, FLIRC case, SD card, RPi power supply, ethernet and USB cables from Amazon.
https://community.roonlabs.com/t/roon-bridge-for-raspberry-pi-with-usb-dac/100157/9?u=jim_f