cringe

And just a heads up, I havent done a Darker side run so I have no idea how many coins you would have by the end. I know in any% you end up with a couple hundred at most and that would be a lot of grinding to get to 9999

Like 100% runs, i think it will lead to coin grinding which isn't fun to run or watch. The only way I see this happening without grinding is Darker Side or all missions where there is a lot of game time where coins can be collected through gameplay without grinding. If you want something like this try to post in the category extensions forum and if you can get 5 people to actually run it, the mods may make it a category. It doesn't hurt to try

Use OBS if you have a capture card. Just window capture LiveSplit with game footage and resize and it should be good

It can be wherever as long as you are consistent. I see some people splitting when the screen goes black after selecting the new kingdom, or when "the odyssey has been repaired/upgraded" text comes up. The only time that matters for the leaderboards is when you start the timer, and stopping after you shoot out of the wire on the moon. The rest of the splits are for your convenience, so make/split them however you like

So when I did my first run, it was after I got every moon in the game, and I did my first in about 2h36min without any routing and just finding moons on knowledge. I don't practice much but my most recent time was 1h27m59s. Not all that great but still progress. I have 6 full runs through the game and ~30 attempts