This is a graphical user interface for apt.
A pre-built "apt-gui.jar" file is available here.
apt-gui depends on apt which is included as a git submodule. Therefore either clone with
git clone --recursive https://github.com/jprellberg/apt-gui.git
or run
git submodule init
git submodule update
after cloning.
After cloning you can build apt-gui with
cd apt-gui
./gradlew jar
Some other available build targets are: clean, eclipse, javadoc