DSP is part of Roon when you buy the license and during free trial.
It’s a total game changer. I have stored DSP corrections for 5 different rooms at home and a similar number of headphones.
Definitely worth the time to learn how to use to get exactly the sound you want. The specific equipment used becomes much less relevant.
Roon runs on most common home computer devices, including Windows, Mac, smartphones, tablets and most any hifi streamer worth its salt these days.
Roon core is the server component. You can run it on specialized hardware designed specifically for it or most any decent home PC or Mac. I run my Roon server on a small desktop PC that I also use to work remotely, etc and that works quite well.
Hope that helps Check it out! Free trial period available still I am pretty sure so nothing to lose