You can plug your SSD into a raspberry pi4 directly into the USB port and run it as a music player/streamer using Moode audio freeware. Then USB out to your DAC of choice. Or get a HAT style DAC and run rca out to your preamp or amp. To control it you need some kind of display that you can run a web browser on, like a cheap Amazon Fire Tablet. Hd8 would work or if you need a larger screen for readability a fire hd10.
Fire HD 10 tablet, 10.1", 1080p Full HD, 32 GB, latest model (2021 release), Black https://www.amazon.com/dp/B08BX7FV5L/ref=cm_sw_r_apan_glt_i_JSWVHQA1V134JVFHJKS2
moodeaudio.org
moodeaudio.org
Fire HD 10 tablet, 10.1", 1080p Full HD, 32 GB, latest model (2021 release), Black https://www.amazon.com/dp/B08BX7FV5L/ref=cm_sw_r_apan_glt_i_JSWVHQA1V134JVFHJKS2