i forget but there should be an option to load the mod loader before loading in there you can browse mods and such that have been posted
found it, it's in the options on the game tab should be the first thing you see think you'll have to restart the app though to actually get into it after that it should be simple if you have any other problems i'd say look at the discord more help there than here and you'll probably get help faster if you ask but more than likely it's already been answered
other than mods on the app you can also find the mods on the discord too and also github