Jellyfin is open sourced and supported by donations. I’ve used it for around a year and I can confirm there have been no fees, tracking, or anything else.

I have a used Lenovo Thinkcentre mini with an i3-7100T and 16gb RAM. I have Ubuntu server LTS installed on it and I run everything in docker containers.

I host:

• jellyfin server for my friends and family
• qbittorrent to download for the JF server(behind a VPN)
• Jellyseerr for requests
• Jackett, Sonarr, and Radarr for downloads
• a Minecraft server