Only adding tasks to inbox is supported.
sudo apt-get install python-gobject gir1.2-gtk-3.0
git clone https://github.com/valievkarim/doitim.git
cd doitim
sudo python2 setup.py install
doitim
You can bind it to key in your window manager
Configuration is stored at ~/.doit-light/config
Feel free to contact me at valievkarim[at]gmail.com