indi_focuserone INDI driver supports FocuserOne telescope focuser controller.
To start you need to download and install INDI environment. See INDI page for details.
Then FocuserOne INDI driver needs to be fetched and installed:
git clone https://github.com/astrojolo/focuserone.git
cd focuserone
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=/usr ..
make
sudo make install
Then indiserver needs to be started with FocuserOne drivers:
indiserver -v indi_focuserone
Now FocuserOne can be used with any software that supports INDI drivers, like KStars with Ekos.