Mute your microphone while typing, for Ubuntu. Install from kryogenix.org/code/hushboard/.
We recommend you install Hushboard through the snap store (see link above)
sudo snap install hushboard
If you're on Arch (btw), there's also an AUR package available for installation:
yay -S hushboard-git
Manual installation or just running the application without installing are described here.
Ensure the following python dependencies are installed:
pycairo
PyGObject
six
xlib
Simply running the application:
python3 -m hushboard
Installing Hushboard to your system:
python3 setup.py install