Problem installing LinuxCNC file linuxcnc_2.9.3_amd64.deb

I have an old installation of LinuxCNC made years ago by someone else on my Optiflex-7020 computer. For some reason, nothing works anymore and the guy is unreachable.
I want to start for scratch.
I plugged a blank hard drive (SATA 160Gb) in the computer, then successfully installed Linux Mint 22.1 (Cinnamon 64 bit).
From the web site linuxcnc.org/downloads/ I chose  LinuxCNC package for RTAI kernel 5.4.25  .After right clicking on the file "open with Gdebi", here is the error message that appears <the dependency cannot be satisfied : libboost-python1.74.0-py311.
Need help (I am a beginner with Linux but I can manage with steps and instructions - a bit of experience). What do you suggest? The goal is to run LinuxCNC with a simple interface and have access to basic applications (Firefox, libreOffice etc.).
Thanks in advance.

Apt (and package managers in general) are really annoying when it comes to irrelevent versions of thing like python.

Try installing from the official 2.9.4 ISO, It's probably easier.

www3.langdonstaab.ca/iso/linuxcnc_2.9.4-amd64.hybrid.iso

For a parallel port system, 2.7.14 is often recommended due to its lower latency.

www3.langdonstaab.ca/iso/linuxcnc-2.7.14-wheezy.iso

Though 2.9.4 willlikely work fine for any setup.

I will try that... ang give news