Currently I'm thinking again about setting up a home server. But I am unsure about the scaling. In the hope to get some input from experienced users I'm coming here.

Services that I intend on running:

• TrueNAS SCALE
• Jellyfin
• *arr stack
• Immich
• Nextcloud
• Bitwarden (maybe)

I've read the Jellyfin documentation which states i5-11500 (because the toolkit for 7-10th gen is deprecated, even though you could encode H.264/H.265) or newer for CPU based encoding or at least a GTX 1660. Because electricity is quite expensive here, I'd prefer CPU encoding. On the other side, office systems with 11th or newer gen are far more expensive. I've found a i5-6500, 16 GB RAM, GTX 1660 system for 180 Euro incl. shipping. There are a few 7th-9th gen systems with 16 GB RAM available that use on board graphics and are 80-120 Euro excl. shipping but I'm not sure if they suffice running the mentioned services and maybe a few more I don't know about yet.

I have two WD Red and a WD Green lying around, I'd like to use. From what I've heard so far, it's necessary to use a separate drive to run TrueNAS off of, which I'd need to buy separately.

Maybe you can give me some insights. Thanks.