sudo pacman -S guakeOpen Settings app
Keyboard => Keyboard Shortcuts => View and Customize Shortcuts => Custom Shortcuts => +:
Name: Guake Toggle
Command: guake-toggle
Shortcut => Set Shortcut: F12
Open Guake Preferences app
Main Window => Main Window Options => Hide Tab bar if there is only one tab: [✔]
Main Window => Main Window Options => Display as tab names: Last Segment
Main Window => Placement => Appear on display: always on primary
Shell => Default interpreter => /usr/bin/zsh