Turn an Intel macmini into a music server

- It'll be exclusively used for music listening

- no preference to Linux or macOS as long as I can remotely control the software via browser or app (I am proficient on both OSes as I used both daily at work)

- preference to freeware but I'm not opposed to paying for quality software

- I also have an RPi3+in case that's a better alternative (obviously I'll be limited to Linux in my OS choice)

- I have no budget and no intention of buying a dedicated music steamer (example: Naim ND5). Also the Macmini is much cheaper ($100 USD only) to replaced compared to dedicated steamer.

Thanks in advance for the help. 

- It'll be exclusively used for music listening

- no preference to Linux or macOS as long as I can remotely control the software via browser or app (I am proficient on both OSes as I used both daily at work. My Linux use is limited to terminal)

- preference to freeware but I'm not opposed to paying for quality software

- I also have an RPi3+in case that's a better alternative (obviously I'll be limited to Linux in my OS choice)

- I have no budget and no intention of buying a dedicated music steamer (example: Naim ND5). Also the Macmini is much cheaper ($100 USD only) to replaced compared to dedicated steamer.

Thanks in advance for the help.