I am hoping to install a small instance of HA to just have life360 and ringalarm integration in a linux terminal that doesn’t have UI. Is it even possible?
Sure, the simplest approach is to use Docker with the Container install method. I’d recommend you use the Docker compose approach.
Assuming you’re using Debian then you can install Docker easily - other versions of Linux are supported too.
Sorry for the confusion. Yes I am aware of docker installation. I meant all the setup/config of life360 and ringalarm integration without UI after installation.
HA doesn’t have a local UI, ever.
Any UI setup is done using your web browser, on another computer.