You will find below how to install Gespage on Debian.
prerequisite:
The Debian server must be at least version 12.
Gespage installation files must be retrieved and copied on the Debian server: Gespage_Debian
Update the repositories
sudo apt-get update
Installing the Gespage agent
sudo apt-get install ./gespage-agent.deb
Installing the Gespage user's interface
sudo apt-get install ./gespage-ui.deb
Installing the Gespage application
sudo apt-get install ./gespage-server.deb