Trackpad: Because i decided to not go with anything like kodi, i need a mouse and as i can not use a mouse when sitting on the couch i got a keyboard with integrated trackpad.
Jellyfin: There are a hole lot of guides on jellyfin. Just put it in to youtube and you will find plenty of stuff. The only thing is ‘obtaining’ the media to fill your library. There are a lot of ways and it depends on what language you need your content to be in to make any decision.
Homelab: Well if you want to run anything like piped or jellyfin you need a homelab. This could also be just a RaspberryPi. To get Piped with subscription feed running you can use my guide: https://gist.github.com/WreckingBANG/405235949c655cd8246188ba25c42277
It is a Browser Engine. This: https://servo.org/
There is also Ladybird: https://ladybird.org/