Where are universal variables stored in the fish shell?

Question

set -xU CFLAGS "-g" will set a universal variable that will persist across sessions. So this variable value must be store in the filesystem somewhere. Where exactly?

I would like to put this file under version control (git) in my ~/dotfiles/.

Answer 1

Since fish version 3.0.0 the file lives in the more portable location ~/.config/fish/fish_variables – Joey Sabey (Edited to be absolute rather than relative path)

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in ~/.config/fish/fishd.(hostname)

Since it's host-specific, I'd recommend you put settings you want to share in ~/.config/fish/config.fish