As a newbie I have been discovering the world of Raspberry Pi as the perfect lockdown learning experience

Meanwhile I have one device up and running, serving as a webserver for an Arduino sensor project. A second device runs Pi-Hole. Both are 4B versions.
I wonder if it's possible to install NEMS on the Pi running Pi-Hole? The 4B is overkill for Pi-Hole, so if possible I would prefer not to add yet another device.
Any recommendations, experiences or suggestions? If possible, is there any tutorial to follow?