@CtrlAltDelMe said in [Question] Change shell to use with RetroPie?:
Wouldn't it be possible to run the bash script by invoking it with bash in whatever config file for fish?
Yes, that would be possible - but I'm not familiar with how fish works.
It stores a config in $HOME/.config/fish/config.fish. However I'd still want the ability to run the setup script to go back to Raspbian if need be. Is that doable?
Probably, but as I said I'm not familiar with how fish works so I can't be of service here.