A* pathfinding 3D in Minecraft 1.17

Hi guys! While you are waiting for my next project, I decided to publish this little algorithm I made. It's a Pathfinding algorithm called A*(A-star).
This algorithm is capable to find the optimal path in a 3D environment. It's as fast as it can get mainly because instead of using area effect clouds or armor stands, I used a new FANTASTIC "entity" added in the 1.17 update: the Marker.
I tried to make the datapack as User-friendly as I could to allow you to test or play around with this algorithm as easily as possible.
More information in the datapack.
Have fun!

Fun fact: I made a 2D version of this algorithm and posted on r/MinecraftCommands to see if people liked it (and they did), but then someone called u/Meem_is_a_meem challenged me to make a 3D version of it, and I actually did it and posted it here.

DISCLAIMER

You can use my datapack for testing, to play around with it, you can show it in a video, but you need to put the credit somewhere visible to everyone and you mustn't claim it yours.