So heres the rules: "Runners must start playing the seed no more than 30 seconds after it is generated, or directly after resetting the previous world. If you choose to generate seeds for the next run while attempting the current run, you must send the appropriate world files and logs for the submitted run, and the run directly prior to it (if applicable). If running FSG through repl.it is too slow, it is recommended to run FSG locally."

What does it mean by Run the FSG locally? How do i do that? Because the repl.ir is taking forever

Basically, Specnr made an FSG macro that you don't have to wait for at all. You just press a key, and then you're loading the next world. Look/ask for it in the discord then just do what the video says.

it is in # fsg in mcsr discord server, click pinned messages and specnr's video is there