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# 📦 Datapacks & Dev-World Overview
## 🎒 1. `datapacks/` — Minecrafts Built-In Modding System
Datapacks are Minecrafts **official way to add custom game logic** without installing mods.
They allow you to create:
- 🍲 Recipes
- 🎁 Loot tables
- 🗺 Structures
- ⚙️ Commands/functions
- 🌌 Dimensions
- 🏆 Advancements
- 🌱 Worldgen features
- 👾 Mob behavior (via loot/function triggers)
Datapacks live inside:
```
world/datapacks/
```
(or inside any other world folder you choose).
### 📁 Example Structure
```
world/
datapacks/
my_custom_pack/
pack.mcmeta
data/
minecraft/
mypack/
```
### ⚡ How Datapacks Work
- When the server starts, Minecraft **automatically loads** all datapacks in that folder.
- You can reload them live with:
```
/reload
```
### 🧠 Why Track Datapacks in Git?
Because datapacks are basically **tiny mods made from text files**, Git gives you:
- Full version control
- Rollbacks for bad experiments
- A safe way to iterate
- Easy syncing between machines
- A complete history of every change
> **Note:** Minecraft 1.1 did not support datapacks yet — but this structure is useful for future worlds or modern servers.
---
## 🌍 2. `dev-world/` — A Safe Testing Sandbox
`dev-world/` is **not** a built-in Minecraft feature.
Its a folder **you create** to safely test changes without risking the real world.
### 🎯 Purpose
Use this sandbox world to test:
- Dangerous commands
- Datapack functionality
- Worldgen changes
- NBT edits
- Anything experimental
### 📁 Example Structure
```
dev-world/
level.dat
region/
playerdata/
```
This mirrors your real `world/` folder.
### 💡 Why a Dev World?
- Reset it instantly
- Duplicate it whenever needed
- Safely break anything
- Prototype new features
- Avoid griefing or corrupting the main world
### 🔧 How to Use `dev-world/`
In your `server.properties`, set:
```
level-name=dev-world
```
Start the server → it loads the dev world.
When you're finished testing, switch back:
```
level-name=world
```
---