I can see you are much more familiar with systemd and thank you for details.
But still I think systemd hardly follow KISS principle.

Systemd includes many complex things, coreutils includes many simple things. And coreutils are ported to many different OS’es, systemd is linux only. Ask why?

Lets imagine, my linux distro runs with openrc/upstart and I like systemd-journal features. Am I able to run system-journal without any other systemd components running?

I am fan of principles like KISS and “Do one thing and do it right”. From this point of view is systemd disaster because it is almost everywhere in the system - boot, network, logs, dns, user/home management… It’s always surprise for me if nothing breaks when I do upgrades.
I understand why systemd is here but I’m not at all happy to use it.

Heh, I was running linux with docker on top of Trunas for several months because of Jellyfin was not available to run in jail. I was not happy because it wasted the server resources and also my resources to maintain it. I don’t want go such way again.
Happy running gitea in jail and when forgejo will be also available in jail I will probably move to its.

Unfortunately not available on TrueNAS

Here you have huge list of public blogs of Hacker News users https://github.com/outcoldman/hackernews-personal-blogs

It’s ok until you start using jails or dedup.

Last time when I checked, I have to pay for needed plugins on v4. V3 is a bit limited but “free” and fine for me. I plan to write my own cli tool just for scraping metadata, subtitles, nfo generation, renaming,… maybe some day…

Jelyfin is awesome but in my case plugins for metadata scraping are behaving somehow weird and slow. And I don’t trust Jelyfin regarding write operations so access is just read-only.

I use tmm v3 for metadata scraping and renaming, which work great in my case.

I use tiny media manager for nfo files. Jelyfin just read, no write.