Having a number of Alexa nodes dotted around the house, would it not be a good idea if I could ask Alexa to play any of my CD collection.
To that end I have ripped most of them to mp3's stored in their own filesystem.
My Raspberry PI can access them directly, all good. So that Alexa can see them, I have installed minidlna and ourjukebox. Alexa can now access my CD collection. "Alexa, ask our juke box to play songs by Elvis Costello".
The minidlna server also serves video, picture and audio files, so as a bonus my photos are also accessible via the source application on my Samsung TV, (Other smart TV's are available) so I just need to get the automatic download from my mobile sorted so that any new photos are sent to the NAS for safe keeping.