I maintain the Guake Terminal project, which is the main tool I use every day at work. I map it directly to the most-upper-left key in the french keyboard to have an instant access to my terminal from anywhere, the absolutely useless [²] key.
I am not the original author of this project, I took over after 2014. My goal is to make Guake a first class citizen terminal for the GNOME environment, so everyone can enjoy using it as much as I do.
Here is the official homepage:
And here is the official GitHub project:
Check the official release area for new versions.