I never want to get a smart TV, but I found this exact TV (Toshiba FireTV) on the side of the road and decided it would be a fun project to try enhancing its privacy as much as I can. It did not come with the remote or any other accessories besides the TV, so if there is any way to pair an iPhone/Pixel as a remote that would also be good. Is there any way to replace the software with something open source, and anything else I can try?
There isn’t a good way to get the jellyfin app running on a properly open and free os. You need an android tv box, fire tv, Apple TV, the tv os or something similar. You could run it on Linux, but there isn’t a good well supported out of the box works with tv os like Kodi offers with libreElec.
Android may be open source but not the setup to make it work with a tv well. If you want privacy on a tv you need kodi.