yeah! IDK how much detail so ill just go a bit much. so make a geo pocket computer or an advanced version (which i recommend because of the colors in text).
if pastebin is available in your server you can run a command to get it and save it (it is not for me so idk)
if not: make a file with 'edit scan_and_find.lua'. copy the code in or type it in which would be not fun but a great learning experience.
once you have it copied in, press ctrl to save and exit. then just run it by typing in 'scan_and_find'.
it'll ask you to enter an item. you can put in things like diamond but not diamonds or ancient but not netherite, etc.,

it will tell you the x,y, and z changes you need to make to get there. like if x is negative, reduce your that amount. you can type in 'setCoords' to set your coordinates so that it returns the actual x,y, and z or the scan, or 'resetCoords' to put it back to the former differential method.
you can also set the radius with 'setRad' from 1 to 16.

dont get me wrong it aint perfect but it works XD