I’d echo the above suggestions. Even if you’re not a ‘tinkerer’ the Raspberry Pi options are now at the level that almost anyone can follow a few simple instructions to get a Roon endpoint up and running. No need for a monitor or keyboard attached to the RPi. You burn Roopiee to an SD card using your laptop, insert the SD card into the RPi and attach the power. If you need to make any configuration changes you do it via a web browser/interface.
One box (using a hat)
- USB / SD Card adaptor (if your laptop doesn’t have a SD Card reader)
- Follow the instructions at https://www.hifiberry.com/hifiberryos/ or https://ropieee.org
Two box (using an external USB DAC)
- Raspberry Pi Starter Kit - The Pi Hut
- FLIRC Raspberry Pi 4 Case– The Pi Hut
- Topping E30 (or similar USB Chi-Fi DAC)
- USB / SD Card adaptor (if your laptop doesn’t have a SD Card reader)
- Follow the instructions at https://ropieee.org