Use elixir -v to access the elixir version
Use elixir -v to access the elixir version

If there is no version manager, or if `exenv` says `system`, then use the output of `elixir -v` to determine the version
nelsonghezzi/spaceship-zsh-theme,bytefluxio/spaceship-zsh-theme,denysdovhan/spaceship-zsh-theme