OP Here's more info on using bindfs on this suggestion. Basically creating a soft link inside the 'movies' folder to the 'movies2/movie1 - 2160p.mkv' file https://github.com/jellyfin/jellyfin/issues/5521
peasntanks
Some can be. Didn't check to see if this was one of them. It's called 'Shucking' and there is a niche for it. Personally I don't think its worth it to go through all that work to research devices, go through all the effort to shuck it (and hope you're lucky!) just to save a couple bucks. https://www.howtogeek.com/324769/how-to-get-premium-hard-drives-for-cheap-by-shucking-external-drives/
To directly answer your question, what you need to run Jellyfin is a computer with sufficient CPU, RAM, storage, and networking. Many NASs can fill this role as can Single Board Computers (e.g. Raspberry Pi).
The QNAP you listed here doesn't seem to have Jellyfin as an app, but it does have Plex. You can find this information on the manufacturer Website.
Hardware: https://www.qnap.com/en-us/product/ts-233
Apps: https://www.qnap.com/en-us/app_center/?os=qts&version=5.1.0~5.1.3&II=616
The type of hard drive required for this NAS is 'internal', what you have linked as your hdd is an external USB drive, it wouldn't work the way you are intending. You need an internal SATA drive. Two would be ideal.
Internal SATA NAS drive: https://www.amazon.com/Seagate-IronWolf-Internal-Hard-Drive/dp/B084ZV4DXB/qid=1700590050
With a 4-core ARM cpu and 2GB of non-expandable RAM, I'm not convinced it would be a good Jellyfin experience. It could at first, maybe for one user at a time; but if you wanted to expand its capabilities (eg. have two streams at the same time), you might not be able to. YMMV
Rather than this QNAP unit, you could go with something that has expandable RAM and the Jellyfin app available to the OS. As mentioned in other comments, Synology is a well-known brand with lots of community support.
Hardware: Synology DS224 https://www.amazon.com/dp/B0C6927XPX/ref=twister_B0CLWLQCT6
Internal SATA NAS drive: https://www.amazon.com/Seagate-IronWolf-Internal-Hard-Drive/dp/B084ZV4DXB/qid=1700590050
Which very nearly doubles the price of the QNAP, but has expandable RAM up to 6GB.
If you're willing to learn a little bit of Linux and CLI, for the price, you can't beat a Raspberry Pi 8GB. It already has more RAM than either of those units can provide, is cheaper to boot, and would use the External HDD you selected. There was a shortage for a couple years with COVID, but with the release of the RPi 5, these are becoming available.
https://www.pishop.us/product/raspberry-pi-4-model-b-8gb/
There are MANY guides on setting up Jellyfin on Raspberry Pi, like this one: https://pimylifeup.com/raspberry-pi-jellyfin/
"Income tax on no income" is exactly what imputed income is, as mentioned by OP. Free perks from an employer are, for example, (in the US), taxed as income.
https://www.hrblock.com/tax-center/income/what-is-imputed-income/
Podman-compose is a python script that simply converts a compose file to 'podman run'. It worked fine enough for me, but the caveat being it doesn't have full feature parity and the errors aren't as good. The only thing I couldnt get working was connecting my GPU to jellyfin.
Turning conainers into systemd units is easy: 'podman generate systems --new --name $container_name › $HOME/.config/systems/user/$container_name.service' 'systemctl --user enable --now $container_name'
https://docs.podman.io/en/latest/markdown/podman-generate-systemd.1.html
You could use a python script with oathtool copied onto each of your devices. This is not a good suggestion.