I'd like to make a website that provides movies and series recommendations based on your preferences. Like letterboxd but extended to series (and other things?)

I'd like to make a website that provides movies and series recommendations based on your preferences. Like letterboxd but extended to series (and other things?) and with open data so that anybody can improve on the recommendation system. Got this idea browsing rotten tomatoes and realizing you can't order lists based on users scores. And the API is private. So, putting your score there is basically donating it to a private for-profit company. The technical side would be easy I guess, a UI and a DB. You would need to populate it but there are some open databases already [0] and you can always scrap IMDB. The recommendation engine would require some ML that I am not familiar with but we can always figure something out. The tough part would be to have people come in and provide scoring. This requires marketing on a 0$ budget and/or networking which is a people skill I absolutely don't have. If anybody have investigated that space, I'd be willing to help on the grunt/technical side. [0] https://www.omdbapi.com/apikey.aspx https://www.omdbapi.com/apikey.aspx