Jelly-ffmpeg6 is not available: how to install ?

[Jujukeke]

Please find here after the result.
Thank you so much for helping me.
During the 3 next days, I will be away from my server so no more test until next week...
See you

Code:

kenman@udoo:~$ sudo apt list --installed | grep linux

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

console-setup-linux/noble,now 1.226ubuntu1 all  [installé, automatique]
cpp-13-x86-64-linux-gnu/noble,now 13.2.0-23ubuntu4 amd64  [installé, automatique]
cpp-x86-64-linux-gnu/noble,now 4:13.2.0-7ubuntu1 amd64  [installé, automatique]
libselinux1/noble,now 3.5-2ubuntu2 amd64  [installé, automatique]
linux-base/noble,now 4.5ubuntu9 all  [installé, automatique]
linux-firmware/noble-updates,now 20240318.git3b128b60-0ubuntu2.1 amd64  [installé, automatique]
linux-generic-hwe-24.04/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé]
linux-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé]
linux-headers-6.8.0-39-generic/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-headers-6.8.0-39/noble-updates,noble-security,now 6.8.0-39.39 all [installé, pouvant être supprimé automatiquement]
linux-headers-6.8.0-40-generic/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-headers-6.8.0-40/noble-updates,noble-security,now 6.8.0-40.40 all  [installé, automatique]
linux-headers-6.8.0-41-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-headers-6.8.0-41/noble-updates,noble-security,now 6.8.0-41.41 all  [installé, automatique]
linux-headers-generic-hwe-24.04/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-headers-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-image-6.8.0-39-generic/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-image-6.8.0-40-generic/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-image-6.8.0-41-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-image-generic-hwe-24.04/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-image-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-libc-dev/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-modules-6.8.0-39-generic/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-modules-6.8.0-40-generic/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-modules-6.8.0-41-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-modules-extra-6.8.0-39-generic/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-modules-extra-6.8.0-40-generic/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-modules-extra-6.8.0-41-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-tools-6.8.0-39-generic/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-tools-6.8.0-39/noble-updates,noble-security,now 6.8.0-39.39 amd64 [installé, pouvant être supprimé automatiquement]
linux-tools-6.8.0-40-generic/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-tools-6.8.0-40/noble-updates,noble-security,now 6.8.0-40.40 amd64  [installé, automatique]
linux-tools-6.8.0-41-generic/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-tools-6.8.0-41/noble-updates,noble-security,now 6.8.0-41.41 amd64  [installé, automatique]
linux-tools-common/noble-updates,noble-security,now 6.8.0-41.41 all  [installé, automatique]
pptp-linux/noble,now 1.10.0-1build4 amd64  [installé, automatique]
util-linux/noble,now 2.39.3-9ubuntu6 amd64  [installé]