Looking for advice on streaming

I just recently purchased Hegel H160 and GE Triton One's.  I am looking for some advice on streaming and organizing my music collection.  I just purchased a Synology NAS DS218+ should arrive today.

The Hegel H160 has a decent DAC and also supports Airplay.  I am wondering if I need to go through my old IMac or if the NAS can go direct into the H160.  https://roononnas.org/synology/
Also would you recommend getting a Node2i or another device for streaming/DAC

I plan on using Tidal and trying Roon for the trial period once set up but am open to other suggestions on software.

Thanks for any help in advance!