fishでrbenv
$ rbenv init # Load rbenv automatically by appending # the following to ~/.config/fish/config.fish: status --is-interactive; and source (rbenv init -|psub)
~/.config/fish/config.fish
# rbenv set -x PATH $HOME/.rbenv/bin $PATH status --is-interactive; and source (rbenv init -|psub)
Rubyはモチベ上がらず