I also prefer HAOS, have 3 Instance Running, i was only referring to the fact that anyhow one needs a Browser as HA is basically a Web-Server, Even a Container Installation
Emhass for HAOS You find below
GitHub - davidusb-geek/emhass-add-on: The Home Assistant Add-on for EMHASS: Energy Management Optimization for Home Assistant · GitHub .
And Forum Topic
EMHASS: An Energy Management for Home Assistant .