How do I make a global leaderboard?

I was making game and I wonder I wanna add a global leaderboard. But I need little help. Can you give a hand please?

first design the leaderboard (ui elements) then code the method used to store data. after that, use messagingservice to send a signal to every server to update the leaderboard ui with new info (or new placings). i would suggest using it only when they pass someone else on the leaderboard because messaging service does have a limit (can easily be done with an if statement on the server). if you do not know what messaging service is visit https://developer.roblox.com/en-us/api-reference/class/MessagingService