Score It is built for Forge 1.16.5+. It is a tiny, bare-bones "leaderboard" mod based on collecting items and turning them in for points.
Score It adds 1 block - the Dropbox. You use the collected item on the dropbox to deposit it and collect the points.
Score It uses the vanilla tag system to identity items and their worth. ex. 1_point.json lists all items that are worth 1 point.
There is also a coin item added that is only accessible with commands for demonstration purposes.