Jelly-ffmpeg6 is not available: how to install ?

[Jujukeke]

Hi TheDreadPirate,

I think that I have found the trouble.
My OS is Ubuntu 24.04 LTS SERVER , and I think that I understand that with a SERVER release the Hardware acceleration is not possible; an X-server seems necessary !!!!

For the moment, I do not manage to install an X-server... I think that I will reinstall all with an Ubuntu DESKTOP even if I only use ssh access to my server. 

What do you think about that, am I right ?

Regards