I've found this repository https://github.com/jup-ag/sol-swap-flash-fill
It claims that it can swap ANY SPL token for SOL. After having examined the code, though, I haven't found any place in it where a token address would be specified.
How does it work then? Is it really capable of swapping ANY token that I'll send to it provided that I've deployed the program?
P.S. Assume that there's enough of liquidity on Jupiter of a selected token