You need to either create a .zip file, or the better alternative, upload the splits to splits.io, and post the link from that site to the splits section of the game page.
Star wars wasn't as good as people make it seem
You can always do runs of the game without there being an official board on the site as well, but yeah, you may request the game on the site, but keep in mind you'll become the sole moderator of the game.
Unless you record both the timer and gameplay at the same time such as in obs, then adding a timer is usually not the best route to go. The timer could be slightly faster or slower than the gameplay due to differences in recorded frame rate or frame drops, so just IMO from someone who sees this in games that I mod, its not necessary.
@Datalnwza I believe this thread will give you your answer https://www.speedrun.com/mc/thread/e2pxf
Also can people please stop complaining about necroposting, it adds nothing to the conversation
@moneycat105 you can always try to talk to the mod team about a possible way to play the game on mac