Do I really need a separate Roon Core (computer) to use Roon Software?


The way I understand it, there are basically 4 devices required to use Roon software to play digital music files (whether from local file storage or streaming). 1. The Roon Core on which the software is installed. 2. A streamer, which takes the datastream from the core (via Ethernet) and provides a high quality input to the DAC. 3. The DAC. 4. And finally an optional controller such as a smartphone or tablet. Seems like a lot of hardware. 
Many people rave about Roon being so fantastic, but is it really worth adding another piece of hardware, power supply, power cord, interconnect, and ongoing maintenance of that hardware?

Currently, I have a LUMIN D1, which is a streamer DAC combo, and I like it. But I’m wondering what Roon would bring to the party.

So my second question is: Is there any hardware that includes the “Core” within the streaming device instead of requiring a separate piece? I found the ELAC Discovery DS-S101-G, but it does not include MQA nor Qobuz, and seems to be obsolete already. I’m kind of old school, and prefer the one box solution for sources. I’m not interested in hooking up a computer to my rig either.  Thanks in advance for any wisdom or advice!
rockrider
Rock, I run a Lumin T2 and a Small Green Computer I5 as a Roon Server. I tried using an SSD equipped MacMini but it just didn't have enough horsepower for Roon....music would sputter or not load at all. The I5 is purpose built and runs Roon without any hiccups. Ethernet cable the I5 to your router and of course your router etherneted to your Lumin. Roon has very good sound quality and allows you to upsample in DSD, if you like that. The software gives you the ability to read album liner notes and many times lyrics while the tune is playing. It also blends flawlessly with any outboard drive you may attach to the Lumin and recommends music based on what you're listening. It's worth the $10 a month to me since it greatly enhances my streaming experience.
You need some type of computer with RAM and CPU to run Roon Core. Can be a general purpose computer PC MaC, laptop, a NUC, a high powered NAS, etc.

What you are perhaps asking is whether a streamer can act as a Core too, right? The answer is yes, but it’s kinda the other way around, like a “computer” that can stream, via USB audio output. A NUC can stream, a Nucleus can stream, or something like Innuos ZEN line is even better
Yes you need some sort of computer though it doesn't have to be hooked to your gear. 
You do. Roon for me brings integrated music discovery. That is my ripped music, my Tidal favorites all look the same.

The other thing it brings is digital domain equalization and upsampling, and a relatively uniform UI.

I run an older Linux box with an AMD A10 7850 and so long as I'm not upsampling to DSD I have plenty of CPU power. I can actually upsample to DSD as well, I just don't like the sound. :)

Best,

E
Thanks for the responses. I do miss access to the complete album liner notes. Tidal, Qobuz, Lumin, and BluOS are all disappointing in that regard. I’ll check out the Innuos lineup too. I don’t really want my library to be mixed with the the streaming library, so maybe Roon is not for me just yet.