Waystones: Fast Travel Across Your World
Waystones adds placeable teleport points that let you fast-travel across long distances. This guide covers how the system works.
Placing and activating waystones
A 
Waystone is a block you craft and place in the world. Activating one by using it adds it to your network of known destinations. Waystones generate naturally in villages and the world too, so you can find and activate them while exploring rather than only crafting your own.
Traveling
Once you have activated waystones, you travel between them. Using a waystone opens a menu of your known destinations to teleport to directly. For travel away from a waystone, the mod adds a 
Warp Scroll (single use) and a reusable 
Warp Stone that send you to a chosen waystone from anywhere.
Sharing and setup
Sharestones offer a separate colored network that can be shared, useful on servers. Getting started is simple: place a waystone at home, activate the ones you find while exploring, and carry a warp scroll or stone for emergencies. Waystones removes the tedium of long overland trips while keeping travel tied to points you have actually visited.
The two builds are not the same mod
This is the detail that catches people out. The 1.21.1 build carries 54 crafting recipes; the 1.20.1 build carries 32. That is a difference of twenty-two recipes — roughly a third of the mod's content.
There is also a 
Warp Plate recipe category with 2 recipes on 1.20.1 and none on 1.21.1, so content moved in both directions between the lines rather than simply being added.
If a waystone variant or an item from a video is missing from your recipe book, check the version before anything else.
What the mod is made of
57 pages across 44 blocks and 13 items. The block-heavy balance is expected: waystones themselves, their variants, and the warp-related blocks are all placed, while the items are the ones you carry — scrolls and stones for warping without a placed destination.
Practical first steps
Place a waystone at your base before exploring rather than after. A waystone only becomes a destination once it has been activated, so one left behind at spawn is worth more than one carried in your inventory.
Because the item side is only 13 entries, the carried options are limited and worth learning as a set rather than discovering one at a time.