I’ll echo the rest of the comments and say Debian with docker. I use podman myself but the setup should be similar enough. I used the official Jellyfin guide from their wiki and got everything working in a day, including transcoding.

Probably a laser printer, keeping warm to be ready to print as soon as it gets a job. My laser printer (also Samsung) draws nearly 1000w after a cold start.

Sony as well

They use XDG Desktop Portal, which makes video and audio capture system level instead of application level to enhance security. When a program wants to record your screen you get a pop up to choose which screen/window to share. After that the app can only see that window or screen.