Jellyfin on TrueNAS Scale (22.12.3) with Docker

[Sleepercell]

1. When you create your "video-movies" dataset, why is the ACL Mode set to "restricted" (as per your screen shot)?

As far as I know, it is automatically set to restricted because of the selected share type (SMB).

2. Why make a new user "jellyfin" and not not use the built-in "apps" user for the Docker container?

Just a personal preference. Every container runs under a dedicated user on my setup. It would also be fine for you to go with the "apps" user.

3. Why do you create the config and cache directories at the command line instead of making datasets?

I don't see a reason to split this into multiple datasets. It's just Jellyfin using different folders, therefore, using one dataset for the whole app is OK for me. And I think it may also be simpler to maintain only one dataset instead of multiple.

4. For transcodes, why not use a memory backed volume (when you configure the docker settings)?

Great input, thanks for that. Right now, I don't know if there are any downsides, but I will test this setting on my setup and update the guide accordingly. 

(By the way, I've got LMS working via a container...)

Then will you create a guide and share it with us?