.tmux.conf

set-option -g default-shell "/usr/local/bin/fish"                                              │Type help for instructions on how to use fish

unbind /
bind / last-window

unbind %
bind - split-window -v
unbind '"'
bind \ split-window -h

bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# resize pane c+b + c+h/j/k/l
bind -r C-k resize-pane -U 10
bind -r C-j resize-pane -D 10
bind -r C-h resize-pane -L 10
bind -r C-l resize-pane -R 10

# binding sync command across panes
bind e setw synchronize-panes
bind E setw synchronize-panes off

For fish

alias ftmux='tmux attach -t $1'
alias ktmux='killall tmux'

Karabiner