With part 1 we setup hotkeys to run our most used applications.
In case of applications we rarely use, we still want to run them as fast as lightning.
That’s why we need an hotkey that pops up an application launcher : some kind of text box in which we enter the name of the application to run (like in a terminal).
I use gmrun. It has features like autocompletion and history which makes it simple and efficient.
There are many others as you can see here.