CalicoJack
If you’re only trying to use Jellyfin at home, you don’t need any reverse proxy or domain. All you need is for both devices to be on the same network, and for the Raspberry Pi to have a fixed internal IP address (through your router settings).
On the Shield, you just give the Jellyfin app that IP address and port number (10.0.0.X:8096) to connect and you’re good to go.
For laptops, I’ve been using EndeavourOS lately. All of the Arch goodness, but with an easy installer that handles the DE too. It’s as close to “just works” as you can get while still having pacman + AUR at the end.
I still love raw Arch, but I leave that for server installs.
You got a remux, which is uncompressed. You can turn those off in Radarr to avoid those surprises.
If you want to fine-tune your file sizes (and quality) further, you can set up custom formats and quality profiles. The Trash Guides explain it well, the “HD Blu-ray + Web” profile on that page is a solid starting point. It’ll usually grab 6-12GB movies, but you can tweak it if you want them smaller.
It’s even worse when you bake sourdough. I’ve been cultivating that yeast colony, caring for it, loving it. It thinks I care, but it’s only being prepared for slaughter.
I only have one machine that’s still running Windows. This would convince me to finally make that zero.