Default configuration for tmux (goes in ~/.tmux.conf)

tmux.conf

set -g default-terminal "screen-256color"
set -g mode-keys vi
set-option -g default-shell /usr/local/bin/zsh

set -g prefix C-q
unbind C-a
bind C-q send-prefix

# vim splits like switching
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# vim-like copy and paste in copy mode (for macosx)
bind P paste-buffer
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-selection
bind-key -T copy-mode-vi r send-keys -X rectangle-toggle

# for Linux use these ones!
# bind-key -t vi-copy 'v' begin-selection
# bind-key -t vi-copy 'y' copy-selection
# bind-key -t vi-copy 'r' rectangle-toggle

# list of plugins
set -g @plugin 'tmux-plugins/tmux-sidebar'
set -g @plugin 'tmux-plugins/tmux-open'
set -g @plugin 'tmux-plugins/tmux-copycat'

# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
# make sure to clone this repo first!
run -b '~/.tmux/plugins/tpm/tpm'