Clarification on size limits?

Hello! I was looking for a way to send a friend of mine an entire Blu-Ray dump (he has no drive, so I dumped it with MakeMKV - it's *huge*) and came across this. My up/downlink is 600/300mbit/s and his is 250/60mbit/s so that should be plenty enough for a lil' overnight transfer shenanigans. While reading the docs, I came across `TORRENT_SIZE_LIMIT` and the similiar version for WebSockets. I would like to know how exactly those affect transfers. Do I have to adjust them to allow sending files larger than 700MB or is that just what the app may use temporarily to store chunks before sending them off? I did look at the code for the usage of those variables, but it seems to be largely a client-side thing (though I have only looked for `TORRENT_SIZE_LIMIT`). The server does not seem to use/return this error at all either way - and, this is a p2p transfer...so technically this shouldn't matter? Would love to understand this a little better. :) Thank you and kind regards, Ingwie