SpigotMC plugin for 1.8 - 1.12.2
https://www.spigotmc.org/resources/debug-stick-recreated-from-1-13-1-8-1-12-2.75020/
Made this some time ago (2020/06/02), so I thought why not publish the source code lol. Please don't judge, I didn't know much java at that time.
Note: I might have changed something and did not finish it, who knows, it was a while ago.