Hey there welcome Here is how to get it working with mac, shoutout to muffins for the guide.
Mac jagex accounts:
1. Open OSBot - click "Patch Game client"
2. Move your OSBot to your applications folder if you haven't already
3. Rename it "OSBot.jar"
4. in your top field, where it says "Path to OSBot jar", paste this "/Applications/OSBot.jar"
5. where it says "Game Client To Patch" paste the following: "/Applications/Runelite.app/Contents/Resources/config.json "
6. Relaunch Jagex Launcher.
7. Choose Runelite as the client.
8. OSBot will load up as normal.