diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index 32af5e9..9c41e5e 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -11,7 +11,7 @@
     </annotationProcessing>
     <bytecodeTargetLevel>
       <module name="EnergeticStorage" target="1.8" />
-      <module name="energeticstorage" target="8" />
+      <module name="energeticstorage" target="1.8" />
     </bytecodeTargetLevel>
   </component>
 </project>
\ No newline at end of file
diff --git a/dependency-reduced-pom.xml b/dependency-reduced-pom.xml
index 3ab5378..57b71b1 100644
--- a/dependency-reduced-pom.xml
+++ b/dependency-reduced-pom.xml
@@ -4,7 +4,7 @@
   <groupId>net.seanomik</groupId>
   <artifactId>energeticstorage</artifactId>
   <name>EnergeticStorage</name>
-  <version>0.7-SNAPSHOT</version>
+  <version>0.7.1-SNAPSHOT</version>
   <build>
     <defaultGoal>clean package</defaultGoal>
     <resources>
@@ -59,10 +59,6 @@
       <id>codemc-repo</id>
       <url>https://repo.codemc.org/repository/maven-public/</url>
     </repository>
-    <repository>
-      <id>codemc-snapshots</id>
-      <url>https://repo.codemc.io/repository/maven-snapshots/</url>
-    </repository>
   </repositories>
   <pluginRepositories>
     <pluginRepository>
diff --git a/pom.xml b/pom.xml
index b4923e0..83808b2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>net.seanomik</groupId>
     <artifactId>energeticstorage</artifactId>
-    <version>0.7-SNAPSHOT</version>
+    <version>0.7.1-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>EnergeticStorage</name>
@@ -84,10 +84,10 @@
             <url>https://repo.codemc.org/repository/maven-public/</url>
             <layout>default</layout>
         </repository>
-        <repository>
+        <!--<repository>
             <id>codemc-snapshots</id>
             <url>https://repo.codemc.io/repository/maven-snapshots/</url>
-        </repository>
+        </repository>-->
     </repositories>
 
     <dependencies>
@@ -102,6 +102,8 @@
             <artifactId>item-nbt-api</artifactId>
             <version>2.8.0</version>
         </dependency>
+        <!-- This is currently compiled by myself with some fixes for anything older than Java 16.
+        Its compiled from SeanOMik/AnvilGUI on github -->
         <dependency>
             <groupId>net.wesjd</groupId>
             <artifactId>anvilgui</artifactId>
diff --git a/src/main/java/net/seanomik/energeticstorage/EnergeticStorage.java b/src/main/java/net/seanomik/energeticstorage/EnergeticStorage.java
index 73ab769..343389c 100644
--- a/src/main/java/net/seanomik/energeticstorage/EnergeticStorage.java
+++ b/src/main/java/net/seanomik/energeticstorage/EnergeticStorage.java
@@ -2,27 +2,37 @@ package net.seanomik.energeticstorage;
 
 import net.seanomik.energeticstorage.commands.ESGiveCommand;
 import net.seanomik.energeticstorage.commands.ESReloadCommand;
+import net.seanomik.energeticstorage.files.ConfigFile;
 import net.seanomik.energeticstorage.files.PlayersFile;
 import net.seanomik.energeticstorage.listeners.BlockBreakListener;
 import net.seanomik.energeticstorage.listeners.BlockPlaceListener;
 import net.seanomik.energeticstorage.listeners.PlayerInteractListener;
+import net.seanomik.energeticstorage.objects.ESSystem;
+import net.seanomik.energeticstorage.tasks.HopperTask;
 import net.seanomik.energeticstorage.utils.ItemRecipies;
 import net.seanomik.energeticstorage.utils.Reference;
 import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
+import org.bukkit.block.data.type.Chest;
+import org.bukkit.block.data.type.Hopper;
+import org.bukkit.craftbukkit.libs.jline.internal.Nullable;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.event.world.WorldSaveEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.scheduler.BukkitTask;
+
+import java.util.*;
 
-// @TODO: Add more config options
-/*
- * Change Log:
- *  - Fix /esgive command runner from getting kicked with "Illegal Characters" error.
- *  - Fix systems that were placed on the walls.
- */
 public final class EnergeticStorage extends JavaPlugin implements Listener {
     private static EnergeticStorage plugin;
+    private static HopperTask hopperTask;
 
     @Override
     public void onEnable() {
@@ -32,9 +42,15 @@ public final class EnergeticStorage extends JavaPlugin implements Listener {
         registerListener();
         ItemRecipies.registerRecipes();
 
+        ConfigFile.getConfig().saveDefaultConfig();
         PlayersFile.getConfig().saveDefaultConfig();
 
         Reference.ES_SYSTEMS = PlayersFile.getAllSystems();
+
+        if (ConfigFile.isHopperInputEnabled()) {
+            hopperTask = new HopperTask();
+            hopperTask.runTaskTimerAsynchronously(this, 0L, 8L);
+        }
     }
 
     private void registerCommands() {
@@ -59,10 +75,10 @@ public final class EnergeticStorage extends JavaPlugin implements Listener {
     }*/
 
     @EventHandler
-    public void onPlayerJoin(PlayerJoinEvent event) {
-        Player player = event.getPlayer();
-
-        //cachePlayersSystems(player);
+    public void onWorldSaveEvent(WorldSaveEvent event) {
+        for (Map.Entry<UUID, List<ESSystem>> systemEntry : Reference.ES_SYSTEMS.entrySet()) {
+            PlayersFile.savePlayerSystems(systemEntry.getValue());
+        }
     }
 
     @Override
@@ -73,4 +89,12 @@ public final class EnergeticStorage extends JavaPlugin implements Listener {
     public static EnergeticStorage getPlugin() {
         return plugin;
     }
+
+    public static HopperTask getHopperTask() {
+        return hopperTask;
+    }
+
+    public static void setHopperTask(HopperTask hopperTask) {
+        EnergeticStorage.hopperTask = hopperTask;
+    }
 }
diff --git a/src/main/java/net/seanomik/energeticstorage/files/ConfigFile.java b/src/main/java/net/seanomik/energeticstorage/files/ConfigFile.java
index 9e5297f..006216c 100644
--- a/src/main/java/net/seanomik/energeticstorage/files/ConfigFile.java
+++ b/src/main/java/net/seanomik/energeticstorage/files/ConfigFile.java
@@ -1,6 +1,8 @@
 package net.seanomik.energeticstorage.files;
 
 import net.seanomik.energeticstorage.EnergeticStorage;
+import net.seanomik.energeticstorage.tasks.HopperTask;
+import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.configuration.file.YamlConfiguration;
 
@@ -59,6 +61,16 @@ public class ConfigFile extends YamlConfiguration {
     public void reloadConfig() {
         try {
             super.load(this.configFile);
+
+            // Check if hopper input is not enabled and if the hopperTask is running. If it is, disable it.
+            // else, we enable the task.
+            if (!isHopperInputEnabled() && !EnergeticStorage.getHopperTask().isCancelled()) {
+                EnergeticStorage.getHopperTask().cancel();
+            } else if (isHopperInputEnabled() && EnergeticStorage.getHopperTask().isCancelled()) {
+                EnergeticStorage.setHopperTask(new HopperTask());
+                EnergeticStorage.getHopperTask().runTaskTimerAsynchronously(EnergeticStorage.getPlugin(), 0L, 8L);
+                //EnergeticStorage.setHopperTask(new HopperTask().runTaskTimerAsynchronously(EnergeticStorage.getPlugin(), 0L, 8L));
+            }
         }
         catch (Exception e) {
             e.printStackTrace();
@@ -84,6 +96,8 @@ public class ConfigFile extends YamlConfiguration {
     public static int getMaxTypes() {
         return getConfig().getInt("driveMaxTypes");
     }
+
+    public static boolean isHopperInputEnabled(){return !getConfig().contains("allowHopperInput") || getConfig().getBoolean("allowHopperInput");}
 }
 
 	
\ No newline at end of file
diff --git a/src/main/java/net/seanomik/energeticstorage/gui/ESDriveGUI.java b/src/main/java/net/seanomik/energeticstorage/gui/ESDriveGUI.java
index 55c0c7f..4fe39de 100644
--- a/src/main/java/net/seanomik/energeticstorage/gui/ESDriveGUI.java
+++ b/src/main/java/net/seanomik/energeticstorage/gui/ESDriveGUI.java
@@ -210,11 +210,18 @@ public class ESDriveGUI implements InventoryHolder, Listener {
                         NBTItem clickedNBT = new NBTItem(cursor);
 
                         if (clickedNBT.hasKey("ES_Drive") && clickedNBT.getBoolean("ES_Drive")) {
-                            event.setCancelled(false);
 
                             List<ESDrive> drives = esSystem.getESDrives();
-                            drives.add(new ESDrive(cursor));
+                            if (drives.contains(null)) {
+                                drives.set(drives.indexOf(null), new ESDrive(cursor));
+                            } else {
+                                drives.add(new ESDrive(cursor));
+                            }
                             esSystem.setESDrives(drives);
+                            initializeItems(player, esSystem);
+
+                            event.setCancelled(true);
+                            cursor.setAmount(0);
                         }
                     }
                     break;
diff --git a/src/main/java/net/seanomik/energeticstorage/listeners/PlayerInteractListener.java b/src/main/java/net/seanomik/energeticstorage/listeners/PlayerInteractListener.java
index 1e97b8e..c3ccf2d 100644
--- a/src/main/java/net/seanomik/energeticstorage/listeners/PlayerInteractListener.java
+++ b/src/main/java/net/seanomik/energeticstorage/listeners/PlayerInteractListener.java
@@ -17,7 +17,7 @@ public class PlayerInteractListener implements Listener {
 
     @EventHandler
     public void onPlayerInteract(PlayerInteractEvent event) {
-        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getHand() == EquipmentSlot.HAND) {
+        if (event.getAction() == Action.RIGHT_CLICK_BLOCK && event.getHand() == EquipmentSlot.HAND && !event.getPlayer().isSneaking()) {
             if (event.getClickedBlock().getType() == Material.PLAYER_HEAD || event.getClickedBlock().getType() == Material.PLAYER_WALL_HEAD) {
                 Block block = event.getClickedBlock();
                 Player player = event.getPlayer();
diff --git a/src/main/java/net/seanomik/energeticstorage/tasks/HopperTask.java b/src/main/java/net/seanomik/energeticstorage/tasks/HopperTask.java
new file mode 100644
index 0000000..9e778ab
--- /dev/null
+++ b/src/main/java/net/seanomik/energeticstorage/tasks/HopperTask.java
@@ -0,0 +1,136 @@
+package net.seanomik.energeticstorage.tasks;
+
+import net.seanomik.energeticstorage.EnergeticStorage;
+import net.seanomik.energeticstorage.files.PlayersFile;
+import net.seanomik.energeticstorage.objects.ESSystem;
+import net.seanomik.energeticstorage.utils.Reference;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockFace;
+import org.bukkit.craftbukkit.libs.jline.internal.Nullable;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import java.util.*;
+
+public class HopperTask extends BukkitRunnable {
+    private boolean isHopperInputting(org.bukkit.material.Hopper hopper, BlockFace hopperRelative) {
+        BlockFace hopperFacing = hopper.getFacing();
+
+        switch (hopperRelative) {
+            case UP:
+                return hopperFacing == BlockFace.DOWN;
+            case DOWN:
+                return hopperFacing == BlockFace.UP;
+            case EAST:
+                return hopperFacing == BlockFace.WEST;
+            case WEST:
+                return hopperFacing == BlockFace.EAST;
+            case SOUTH:
+                return hopperFacing == BlockFace.NORTH;
+            case NORTH:
+                return hopperFacing == BlockFace.SOUTH;
+        }
+
+        return false;
+    }
+
+    private Map<BlockFace, Block> getRelativeHoppers(Block block) {
+        // relative face, block
+        Map<BlockFace, Block> hoppers = new HashMap<>();
+
+        Block upBlock = block.getRelative(BlockFace.UP);
+        Block downBlock = block.getRelative(BlockFace.DOWN);
+        Block eastBlock = block.getRelative(BlockFace.EAST);
+        Block westBlock = block.getRelative(BlockFace.WEST);
+        Block northBlock = block.getRelative(BlockFace.NORTH);
+        Block southBlock = block.getRelative(BlockFace.SOUTH);
+
+        if (upBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.UP, upBlock);
+        }
+
+        if (downBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.DOWN, downBlock);
+        }
+
+        if (eastBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.EAST, eastBlock);
+        }
+
+        if (westBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.WEST, westBlock);
+        }
+
+        if (northBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.NORTH, northBlock);
+        }
+
+        if (southBlock.getType() == Material.HOPPER) {
+            hoppers.put(BlockFace.SOUTH, southBlock);
+        }
+
+        return hoppers;
+    }
+
+    @Nullable
+    private ItemStack getFirstItemStack(Inventory inventory) {
+        ItemStack[] items = inventory.getContents();
+        for (ItemStack item : items) {
+            if (item != null && item.getType() != Material.AIR) {
+                return item;
+            }
+        }
+
+        return null;
+    }
+
+    @Override
+    public void run() {
+        for (Map.Entry<UUID, List<ESSystem>> systemEntry : Reference.ES_SYSTEMS.entrySet()) {
+            for (ESSystem system : systemEntry.getValue()) {
+                Block systemBlock = system.getLocation().getBlock();
+
+                // Get all relative hoppers touching the system.
+                Map<BlockFace, Block> hoppers = getRelativeHoppers(systemBlock);
+                for (Map.Entry<BlockFace, Block> entry : hoppers.entrySet()) {
+                    Bukkit.getScheduler().runTask(EnergeticStorage.getPlugin(), () -> {
+
+                        try {
+                            org.bukkit.block.Hopper hopper = (org.bukkit.block.Hopper) entry.getValue().getState();
+                            org.bukkit.material.Hopper hopperType = (org.bukkit.material.Hopper) hopper.getData();
+                            // Check if the hopper is facing towards the system
+                            if (isHopperInputting(hopperType, entry.getKey())) {
+
+                                // Find the first non-null item in the hopper inventory and add it
+                                ItemStack firstItem = getFirstItemStack(hopper.getInventory());
+                                if (firstItem != null) {
+                                    ItemStack clonedItem = firstItem.clone();
+                                    clonedItem.setAmount(1);
+
+                                    firstItem.setAmount(firstItem.getAmount() - 1);
+
+                                    system.addItem(clonedItem);
+                                }
+                            }
+                        } catch (ClassCastException exception) {
+                            // Ignore exception. These exceptions are only thrown in rare occasions
+                            // that the hopper is destroyed during during this task.
+                        }
+                    });
+                }
+            }
+        }
+    }
+
+    @Override
+    public synchronized void cancel() throws IllegalStateException {
+        for (Map.Entry<UUID, List<ESSystem>> systemEntry : Reference.ES_SYSTEMS.entrySet()) {
+            PlayersFile.savePlayerSystems(systemEntry.getValue());
+        }
+
+        Bukkit.getScheduler().cancelTask(this.getTaskId());
+    }
+}
diff --git a/src/main/resources/config.yml b/src/main/resources/config.yml
index 191249a..295bef8 100644
--- a/src/main/resources/config.yml
+++ b/src/main/resources/config.yml
@@ -1 +1,2 @@
 driveMaxTypes: 128
+allowHopperInput: true
\ No newline at end of file