Simple Item Elevator - Tileable/Modular 1.20

In this video I'll show you my simple, tileable item elevator (1-wide item elevator). The modular system can be extended to fit any need, and I'll show how modules can be chained together. This design is working in Java 1.20.
Chapters:
00:00 Intro
00:35 Single Tile Overview
01:15 Single Tile Tutorial
05:13 Multiple Tiles
05:45 Extending Signal for Large Systems
07:00 Variations of Design
Materials Required for Single Tile:
𝑥 Droppers (depends on your needs)
2*𝑥 Building Blocks (roughly twice the number of droppers)
1.5*𝑥 Redstone Torches (roughly 1.5*the number of droppers)
1 Hopper
2 Chests (input and output)
1 Redstone Repeater
1 Redstone Dust
Materials for Clock (only 1 clock will ever be needed):
3 Building Blocks
2 Observers
1 Redstone Repeater
Optional On/Off Switch
1 Lever
1 Redstone Repeater
Redstone Dust (to wire switch to repeater)