It’s a pain but also it’s no surprise that DNS and ipv6 are premium when ipv4 and dynamic IP works so well for 99% of us. Even if you wanna host something publicly there are totally free services and software tools to cover most if not all caveats of not using ipv6 (for now).

I have selfhosted for years and only paid for a domain name recently.

metronome for the other components to practice playing songs at the right bpm

Yeah even if you’re someone who is super concerned about Jellyfin’s API safety, it’ll likely be less maintenance setting them up on tailscale than duplicating the streaming hardware. But that’s assuming OP’s family are as tech illiterate as mine

I have two 4TB in Raid 10 (ZFS Mirror) and two 8TB as the same. All in TrueNAS Scale.

TrueNAS is pretty good for a basic setup imo!