Looking for some install suggestions

Hi all.

I run Hassio on a RPI and also have it running node-red. I have a ubuntu server running my Xeoma server adn not much else.

I am looking at installing appdaemon so I can use HAdashboard on some tablets and was wondering what are your thoughts on where to install. Am I better to install it on the ubuntu server as a docker etc or if I put it on the RPI is it likely to load it up much more?
EDIT: or install it on a seperate RPI?