Vanilla Tweaks is a website that can be used to create your own datapack for use on your Minecraft words. It allows you to choose modifications through a website and put all of the mods into one single pack. Using these steps, you can easily load your chosen Vanilla Tweaks onto your Minecraft server.
1. Head over to Vanilla Tweaks and pick out the tweaks you want to use on your server.
2. Once you're done choosing your tweaks, click on Share
3. Copy the end of the link that pops up in the bottom right of the screen. In this case, I want to copy XLvavN
4. Open the File Manager
5. Right click docker-compose.yml
and click Edit
6. Add the line VANILLATWEAKS_SHARECODE: <sharecode>
7. Save the Basic Server Settings