I don't have Android TV but have Amazon Fire stick.
Created streaming server in house network with KODI.
i.e. KODI client on Fire stick which would only playback contents that are streamed.
As source, I've my external HDDs connected to my PC. Created KODI streaming server in PC.
Why all such pain?
To d/l subtitles for movies where subtitles are not available.
Do I use it, or how happy I'm with this?
Not happy.
My network speed is slow, the streaming is slow and spoils the viewing experience.
But, the experiment succeeded that is a good thing.