Is the port force mod allowed for speedruns?

I was wondering if the use of the essential mod could be allowed for co-op speedruns, only for the feature of letting another person join your singleplayer world. I have used this this mod multiple times, (not for speedrunning purposes) and it has worked wonderfully. The reason i’m asking is because it is nearly impossible to get a server working that both my friend and I can join. We have tried multiple different other options and this is the only one that consistently works for us. I understand that the mod has multiple other features but I believe most of them can be disabled or at least do not affect the game itself. Thank you for your consideration. Thanks.