Popup terminal with tmux

.tmux.conf

# ... your other config

bind-key -n M-3 run-shell 'toggle-tmux-popup'
# you can switch `M-3` to any keybindings you like.

toggle-tmux-popup

#!/bin/bash
# 👻 put this file into your $PATH, normally `~/.local/bin/toggle-tmux-popup`
# 👻 this script should have runable permission.

if [ "$(tmux display-message -p -F "#{session_name}")" = "popup" ];then
    tmux detach-client
else
    tmux popup -d '#{pane_current_path}' -xC -yC -w80% -h75% -E "tmux attach -t popup || tmux new -s popup"
fi

Pop-up windows based on the current directory name.

bind-key -n M-g if-shell -F '#{==:#{session_name},#{b:pane_current_path}}' {
    detach-client
} {
    display-popup -d "#{pane_current_path}" -xC -yC -w 90% -h 85% -E 'tmux new-session -A -s (tmux display-message -p "#{b:pane_current_path}")'
}