Download the deb file from >HERE<

If the link is not clickable copy and paste the following url in your browser.

~amd64.deb is for PC’s and ~arm64.deb is for Raspberri Pi

Select the latest release and click on the .deb to start a download.

Install with Gdebi from the file manager. If Gdebi is not installed open a terminal and run this command.

sudo apt install gdebi

After installing Flex GUI a menu item Copy Flex Examples is added to the CNC menu. This will copy the Flex GUI example files to ~/linuxcnc/configs and the directory is flex_examples.