Very confused abou this 'server'

[SphinxRa40]

Hi,

My English is not the best, I tried to read the website and all,
at first glance, I thought it was finally an easy way to set up a server/streamer

But uh this is not like Icecast/azuracast ?! I am confused
only to read the library of music files?!

I have Qnap NAS (big regret as there's like NONE guide on how to install icecast2)
on the whole, internet, if I google for Synology it's like what I needed for a noob docker install and all)

So what is this?

Ty^^