Replacing or unlocking your TV's system

I want to pick an open-source replacement for Samsung Tizen, LG webOS, Google TV, Fire OS, Roku OS, Titan OS (swapping or rooting the tv or media box system, or turning a pc into a tv box). Below is a list from Open Source Everything (CC BY-SA 4.0), in the order its website shows it. The order is a starting point, not a verdict. - CoreELEC: CoreELEC is a free Linux-based operating system that turns low-cost hardware into a media player for the Kodi home theater software. It is made for people who want to run Kodi on a TV box or similar device. [Easy setup; devices not listed; replaces fully; GPL-2.0-only; https://github.com/CoreELEC/CoreELEC] - Kodi: Kodi is a free media player that plays your music, videos and photos from your computer, network or the internet. It is made for people who want a home theater setup they control themselves. [Easy setup; Windows · Mac · Linux · Android; replaces partly; GPL-2.0-or-later; https://github.com/xbmc/xbmc] - LibreELEC: LibreELEC is a free operating system that turns a computer or media box into a home theater system running the Kodi media center. It is made for people who want to watch media on a TV and for those who want to replace the system on their media device. [Advanced setup; Linux; replaces partly; GPL-2.0-only; https://github.com/LibreELEC/LibreELEC.tv] - RootMyTV: RootMyTV is a tool that unlocks LG smart TVs running webOS so that people can install a community app store and extra software on them. It is meant for owners of LG TVs who want more control over their own TV, though the README says it works only on older TV software and is unlikely to work on most current models. [Easy setup; In your browser; replaces partly; MIT; no changes in over a year; https://github.com/RootMyTV/RootMyTV.github.io] Setup rating: "Easy setup" means you can install it like a normal app, use it in a browser. "Advanced setup" means you must run it on your own server or use the command line, or it is a tool for developers. Full details: https://opensourceeverything.org/data/groups/tv-os.json Before recommending anything, ask me these three questions (one at a time, in plain words): 1) Which device or devices will I use it on (Windows, Mac, Linux, Android, iPhone)? 2) How comfortable am I with technical setup: only installing apps from a store, happy to follow a step-by-step guide, or comfortable with servers and the command line? 3) What is my budget: free only, or willing to pay for hosting or support? Then recommend one to three projects from this list only, and for each say why, using how fully it replaces the app, its setup rating, and the devices it runs on. If nothing on the list fits me, say so plainly instead of stretching.

Read the list of open-source projects at https://opensourceeverything.org/data/groups/tv-os.json. Compare it with my project or idea below. Tell me which projects overlap, what I could reuse instead of rewriting, and what mine does that none of them do. My project or idea: