CartLoader [1.17 – 1.21+]

Keep your Minecarts rolling!

This small plugin loads chunks for moving minecarts automatically, enabling efficient long-distance transport with no players and no manual chunk loaders required.

Perfect for e.g. automatically sending items in chest minecarts over long distances … and even through portals and the nether!

It works by dynamically loading a region of chunks around moving minecarts only. After the minecart stopped or was destroyed, you can optionally keep the last region loaded for a period of time (e.g. for automatic unloading or other redstone circuits at the destination).
If there are loaded regions when the server gets stopped, they will be seamlessly loaded again upon the next server start to ensure that the minecarts start moving again.

Highly configurable:

• Which types of moving minecarts should load chunks: normal, chest, hopper etc.
• The size of the region of chunks around the minecart to load: from 1 chunk radius to whatever you like!
• If and how long to keep the region a minecart was last active in loaded after it stopped moving
• Whether to save the currently loaded regions at server shutdown and reload them again at the next startup
• How frequently to check the minecart's position (can be adjusted if have another plugin that increases the maximum speed of minecarts)
• Speed below which a minecart is considered to be stationary

Designed with efficiency at its core, this plugin was developed with performance at the highest priority from the start.
For reasonable region sizes and number of minecarts, you shouldn't see any performance issues.
Tested with both Spigot and Paper.