lichess-org/lila ? reverse-engineered prompt

Build me a free online chess website like Lichess, focused on fast real time play and easy use.

I want people to be able to log in, play live or correspondence games, search past games, analyze positions with engine help, join tournaments and simuls, use a training mode for tactics, and create shared study boards. It should also have forums, teams, and a public API for other apps to use.

Make the site support light and dark themes, work well on desktop and mobile, and be available in lots of languages. It should feel polished, ad free, and community driven. If you need to look up current docs or best practices while building it, go ahead.