Anything Lichess, Chess.com or a database exports. Variations and comments are kept; only the main line is reviewed.
Fetched from each project's own GitHub releases. The right build for your CPU is picked automatically, and if it will not run here the next one down is tried instead.
Lc0 needs a network as well as a binary. The Maia nets predict what a human of that rating plays rather than what is best — useful for asking whether a move was findable, never for judging one.
Nothing in this app needs a token: every endpoint it uses is public. One only raises the rate limit when importing many games at once.