Elytra launcher tutorial - Nether safe, no water required! (works in Java 1.21, see description)

1.21 UPDATE: There's a slight tweak you need to do to get this working in Minecraft Java 1.21. Please watch this update video before building:    • Elytra Launcher 1.21 Update  

Here's a tutorial for a Minecraft elytra launcher. This launcher uses stacked boats to propel you at high speeds without any rockets. I came up with this design so I could use this launcher for long-distance nether travel. It's incredibly fast and I use it to travel several thousand blocks in a single launch using no rockets.

This design loads boats in minecarts to avoid needing to use water. Here's another design that dispenses the boats into water, by PonZieGuy:    • Most Powerful Elytra Launchers in Min...  

I don't normally make Minecraft videos, but I spent long enough looking for a design like this that I figured I should share my own design so other people can use it.

0:00 Introduction
0:29 Materials
0:53 Building the main structure
3:03 Stacking the boats
5:16 Finishing the launcher
6:10 How to use the launcher