I’m not sure what you are talking about. I’ve never experienced phx.server doing anything related to brunch in any environment.
Also I can’t find anything in phoenix or generated code which refers to using brunch on app start.
If doing JS-stuff I use a second terminal which has brunch watch running. But I do prefer to just do not do anything JS related and if I had to touch a single file, I just do a single build, hoping I’m ready to go.
