Portal Core

Portal Core lets you create custom portals and link them together. Build a main hub portal that can go anywhere, then set up destination portals that all connect back to it. Just build, activate, and enjoy the fast travel experience. All dimensions have its own network system.

Craft a Portal Anchor using Chiseled Deepslate, Redstone, and an Ender Eye as shown.

Build a 5×5 Chiseled Deepslate frame, drop the anchor in the center, and right-click to Portal Anchor to configure.

Name your portal, hit activate. First one you build should be set as main,  that's your hub. Every portal after that will automatically connect to it.

The main portal gets a destination selector where you pick destinations. Switch it whenever you want. Other portals don't need any setup, they just route back to main.