First of all, please have a look at the following links

• Eagle Mode original project page (ℹ hosted from sourceforge.net),
• Olivier Hamann profile page (the project author, maintainer at sourceforge.net)
• Olivier Hamann profile page (at https://libregamewiki.org)
• This soft-fork tracking upsteam release maintained by Robert Hailey

Now that all attribution and credits is clear,
we can move on to the next part which is only
about making it a little bit easier for /me whoever would like to try
to install Eagle Mode for a linux distribution,
namely Ubuntu, and only the latest LTS release at this moment.

The documentation on this project is in the subdirectory "doc".
Best is to open the file "doc/html/index.html" in a web browser.

The following commands appeared to be working for Ubuntu when running the following command lsb_release -a outputs

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

⚠ The following script (install-eagle-mode.sh) requires elevated rights
to install packages with apt.

git clone https://github.com/thierrymarianne/contrib-eagle-mode eagle-mode
cd eagle-mode || exit
tmp_dir="$(mktemp --directory --suffix='_eagle-mode')"
. ./install-eagle-mode.sh && install-eagle-mode "${tmp_dir}/eagle-mode"

• upstream project contact page
• upstream project discussion forum

GNU General Public License v3.0
per original project licensing

See LICENSE to see the full text.