v1.0.2 - Mod updated to work with the currently latest verssion of the game (1.21.11!).
v1.0.2 - Mod now works with Minecraft version: 1.21.10! GOOD NEWS: The issue where the landing sound plays twice, only persisted on MC 1.21.9, therefore it acts normal on 1.21.10+.
TL;DR:
The mod works normally for Minecraft 1.21.1.
v1.0.2 - Mod now works with Minecraft version: 1.21.9! Also please note that the items could play the landing sound twice, due to some complicated issues based on the speed of the item (horizontal). The mod works really well still, and the issue can be actually treated as an enhancement so it appears like the item bumped on the ground twice before landing fully!
v1.0.2 - Updated mod so that it works with Minecraft version: 1.21.8!
v1.0.2 - Minecraft version compatibility has been updated to Minecraft version: 1.21.7!

This is a very simple Fabric mod, that plays a sound (based on block), at the block an item landed on.