Hello!
After trying out a modded play-through with Fabric for a while, I noticed a lot of my favorite mod items aren't available.
One of these in particular was the OpenBlocks elevator. It's so simple, but so brilliant.
There's a Forge version available, and there actually already is a Fabric version, but unfortunately it was abandoned.
So, I downloaded what I needed for fabric development, and after two days of reading the wiki time and time again, scouring the Minecraft source code, and asking for help in the lovely Fabric discord, I produced my first mod.

Crafting
Surround an ender pearl with any colored wool in a crafting table to craft an elevator block.

Usage
Place an elevator block above or below another elevator block.
Stand on top of the elevator block. Jump to ascend to a higher elevator, crouch to descend.
Currently the maximum range is hard-coded to be 32 blocks.
To-do
Special thanks
OpenMods, the creators of OpenBlocks
The Fabric Discord channel, especially Catherine and Zensonaton.
The Fabric Team
Please leave any feedback or suggestions down below!