hahaha ... forum are like that ... subjects morph all the time.
for me, I just wanted home network (no clouds) that shares photos, movies and music in seamless easy to use way even for computer illiterate members of families. You can pay system integrators to do it for ya, but that's way too expensive. Music and movies are easy (I plan to use Kodi for movies and music ... though you can use iTunes too ... didn't choose iTunes cause no support for FLAC files). Multi room audio is not difficult too with AirPlay and RogueAmoeba Airfoil.
only thing left was photo/home videos. As I wanted single library that multiple ppl can import to, tag, classify, edit, etc. Then that library can be used to simply enjoy viewing photos by family and their guests on iPad, smart TVs, etc. Tried to lobby Kodi team to implement this ... not happening. So needed something else ... seems Daminion is that something affordable else lol