enabling transcoding

[Russ Ha]

Hi , I'm a Newish Linux

I have Jellyfin installed as a docker, everything working, got my users slowly transferring from Plex.

What I cant get working is transcoding. Chasing the documentation I get that I need jellyfin-ffmpeg7

Yes, I found that only the LTS Ubuntu is supported which Plucky is not. So trying to install repository I get  The repository 'https://repo.jellyfin.org/ubuntu plucky Release' does not have a Release file.

What is any work around, or a guide for plucky?

I Tried: text edit /etc/apt/sources.list.d/jellyfin.list changing plucky to jammy
Solved the ' does not have a Release file' but then gave

-------------------------------------------------------------------------------------
Solving dependencies... Error!
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

Unsatisfied dependencies:
jellyfin-ffmpeg7 : Depends: libvpx7 (>= 1.10.0) but it is not installable
                    Depends: libx264-163 (>= 2:0.163.3060+git5db6aa6) but it is not installable
                    Depends: libx265-199 (>= 3.5) but it is not installable
Error: Unable to correct problems, you have held broken packages.
Error: The following information from --solver 3.0 may provide additional context:
  Unable to satisfy dependencies. Reached two conflicting decisions:
  1. jellyfin-ffmpeg7:amd64=7.1.2-2-jammy is selected for install
  2. jellyfin-ffmpeg7:amd64 Depends libvpx7 (>= 1.10.0)
      but none of the choices are installable:
      [no choices]
---------------------------------------------------------------------------------------------

so tried install jellyfin-ffmpeg7_7.1.2-2-jammy_amd64.deb

Regards Russell