Debian
The following steps explain how to add the IMCCE repository to your system. These instructions should work on most Debian-based Linux systems.
Install required tools
In order to add the repositories, you will need to install some tools available from the distribution. These tools are usually already installed on most Debian-based operating systems.
apt install wget gnupg2Setup the IMCCE repository
First, you need to make sure you have a copy of the IMCCE repository GPG key.
wget -O - https://packages.imcce.fr/packages.imcce.fr.gpg.key | sudo tee /etc/apt/trusted.gpg.d/packages.imcce.fr.gpg.keySecond, you need to add the source, corresponding to your distribution version, in a separate file under /etc/apt/sources.list.d/ . You need to take care to select the instructions corresponding to the codename of your distribution in order to avoid to break your system.
The following commands create the file /etc/apt/sources.list.d/packages.imcce.fr.list .
sudo echo "deb [signed-by=/etc/apt/trusted.gpg.d/packages.imcce.fr.gpg.key] https://packages.imcce.fr/apt/bookworm bookworm main" > /etc/apt/sources.list.d/packages.imcce.fr.listThe following commands create the file /etc/apt/sources.list.d/packages.imcce.fr.list .
sudo echo "deb [signed-by=/etc/apt/trusted.gpg.d/packages.imcce.fr.gpg.key] https://packages.imcce.fr/apt/bullseye bullseye main" > /etc/apt/sources.list.d/packages.imcce.fr.listThe following commands create the file /etc/apt/sources.list.d/packages.imcce.fr.list .
sudo echo "deb [signed-by=/etc/apt/trusted.gpg.d/packages.imcce.fr.gpg.key] https://packages.imcce.fr/apt/buster buster main" > /etc/apt/sources.list.d/packages.imcce.fr.listThird, you need to update the catalog of the available packages
sudo apt update