Your provider will give you these 3 things.
Example server: http://iptv-service.com:8080
The addon will build your M3U URL automatically.
Optional — recommended
Matches your content with Stremio's global catalog — posters, descriptions, ratings.
Free key at themoviedb.org
Saves your resolved titles to a GitHub repo so a restart doesn't have to start matching from zero.
Fully optional — without it the addon works exactly the same, it just re-matches everything after a restart.
Get a token at github.com
How do I get this?
Create a small private repo on GitHub (any name works) — this is where the file with your resolved titles will live.
Go to github.com/settings/tokens/new (the link above), give it any name, check the "repo" permission box, and generate it.
Copy that token and paste it above, together with the repo name in "username/repo-name" format.
A title matched wrong? Fix it here. This page is private to your
install link -- only someone with this exact link can see or change it.
Your lists
Fix a title
If a movie or series matched the wrong poster or info, correct it here.
Choose what it is, type the exact name as it shows in your list, then
search and pick the right match -- no need to look up any code
elsewhere.
No TMDB key was set for this configuration -- add one from the
original setup form to be able to search here.
Saved. This title will use the new match from now on.