diff --git a/build.gradle b/build.gradle
index 40b156d77..878b4c8c0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -300,6 +300,13 @@ task iris(type: Copy) {
     dependsOn(build)
 }
 
+task setup() {
+    group "iris"
+    NMS_BINDINGS.each {
+        dependsOn(project(":nms:${it.key}").executeBuildTools)
+    }
+}
+
 def registerCustomOutputTask(name, path) {
     if (!System.properties['os.name'].toLowerCase().contains('windows')) {
         return;
diff --git a/core/build.gradle b/core/build.gradle
index 300825e97..76a806aa6 100644
--- a/core/build.gradle
+++ b/core/build.gradle
@@ -58,6 +58,7 @@ dependencies {
     implementation 'com.github.oraxen:oraxen:1.158.0'
     implementation 'com.github.LoneDev6:api-itemsadder:3.4.1-r4'
     implementation 'com.github.PlaceholderAPI:placeholderapi:2.11.3'
+    implementation 'com.github.Ssomar-Developement:SCore:4.23.10.8'
     //implementation files('libs/CustomItems.jar')
 }
 
diff --git a/core/src/main/java/com/volmit/iris/core/link/ExecutableItemsDataProvider.java b/core/src/main/java/com/volmit/iris/core/link/ExecutableItemsDataProvider.java
new file mode 100644
index 000000000..8112a4595
--- /dev/null
+++ b/core/src/main/java/com/volmit/iris/core/link/ExecutableItemsDataProvider.java
@@ -0,0 +1,58 @@
+package com.volmit.iris.core.link;
+
+import com.ssomar.score.api.executableitems.ExecutableItemsAPI;
+import com.volmit.iris.Iris;
+import com.volmit.iris.util.collection.KList;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.MissingResourceException;
+import java.util.Optional;
+
+public class ExecutableItemsDataProvider extends ExternalDataProvider {
+    public ExecutableItemsDataProvider() {
+        super("ExecutableItems");
+    }
+
+    @Override
+    public void init() {
+        Iris.info("Setting up ExecutableItems Link...");
+    }
+
+    @Override
+    public BlockData getBlockData(Identifier blockId) throws MissingResourceException {
+        throw new MissingResourceException("Failed to find BlockData!", blockId.namespace(), blockId.key());
+    }
+
+    @Override
+    public ItemStack getItemStack(Identifier itemId) throws MissingResourceException {
+        return ExecutableItemsAPI.getExecutableItemsManager().getExecutableItem(itemId.key())
+                .map(item -> item.buildItem(1, Optional.empty()))
+                .orElseThrow(() -> new MissingResourceException("Failed to find ItemData!", itemId.namespace(), itemId.key()));
+    }
+
+    @Override
+    public Identifier[] getBlockTypes() {
+        return new Identifier[0];
+    }
+
+    @Override
+    public Identifier[] getItemTypes() {
+        KList<Identifier> names = new KList<>();
+        for (String name : ExecutableItemsAPI.getExecutableItemsManager().getExecutableItemIdsList()) {
+            try {
+                Identifier key = new Identifier("executable_items", name);
+                if (getItemStack(key) != null)
+                    names.add(key);
+            } catch (MissingResourceException ignored) {
+            }
+        }
+
+        return names.toArray(new Identifier[0]);
+    }
+
+    @Override
+    public boolean isValidProvider(Identifier key, boolean isItem) {
+        return key.namespace().equalsIgnoreCase("executable_items") && isItem;
+    }
+}
diff --git a/core/src/main/java/com/volmit/iris/core/link/IrisPapiExpansion.java b/core/src/main/java/com/volmit/iris/core/link/IrisPapiExpansion.java
index 33dbb6ce6..666573f14 100644
--- a/core/src/main/java/com/volmit/iris/core/link/IrisPapiExpansion.java
+++ b/core/src/main/java/com/volmit/iris/core/link/IrisPapiExpansion.java
@@ -46,7 +46,7 @@ public class IrisPapiExpansion extends PlaceholderExpansion {
 
     @Override
     public boolean persist() {
-        return false;
+        return true;
     }
 
     @Override
diff --git a/core/src/main/java/com/volmit/iris/core/service/ExternalDataSVC.java b/core/src/main/java/com/volmit/iris/core/service/ExternalDataSVC.java
index 04606f179..de6d2ac81 100644
--- a/core/src/main/java/com/volmit/iris/core/service/ExternalDataSVC.java
+++ b/core/src/main/java/com/volmit/iris/core/service/ExternalDataSVC.java
@@ -19,10 +19,7 @@
 package com.volmit.iris.core.service;
 
 import com.volmit.iris.Iris;
-import com.volmit.iris.core.link.ExternalDataProvider;
-import com.volmit.iris.core.link.Identifier;
-import com.volmit.iris.core.link.ItemAdderDataProvider;
-import com.volmit.iris.core.link.OraxenDataProvider;
+import com.volmit.iris.core.link.*;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.plugin.IrisService;
 import lombok.Data;
@@ -53,6 +50,10 @@ public class ExternalDataSVC implements IrisService {
         if (Bukkit.getPluginManager().getPlugin("ItemAdder") != null) {
             Iris.info("ItemAdder found, loading ItemAdderDataProvider...");
         }
+        providers.add(new ExecutableItemsDataProvider());
+        if (Bukkit.getPluginManager().getPlugin("ExecutableItems") != null) {
+            Iris.info("ExecutableItems found, loading ExecutableItemsDataProvider...");
+        }
 
         for (ExternalDataProvider p : providers) {
             if (p.isReady()) {
diff --git a/core/src/main/java/com/volmit/iris/engine/mantle/components/MantleObjectComponent.java b/core/src/main/java/com/volmit/iris/engine/mantle/components/MantleObjectComponent.java
index ac7fe51e8..94cf3547e 100644
--- a/core/src/main/java/com/volmit/iris/engine/mantle/components/MantleObjectComponent.java
+++ b/core/src/main/java/com/volmit/iris/engine/mantle/components/MantleObjectComponent.java
@@ -23,10 +23,7 @@ import com.volmit.iris.engine.data.cache.Cache;
 import com.volmit.iris.engine.mantle.EngineMantle;
 import com.volmit.iris.engine.mantle.IrisMantleComponent;
 import com.volmit.iris.engine.mantle.MantleWriter;
-import com.volmit.iris.engine.object.IrisBiome;
-import com.volmit.iris.engine.object.IrisObject;
-import com.volmit.iris.engine.object.IrisObjectPlacement;
-import com.volmit.iris.engine.object.IrisRegion;
+import com.volmit.iris.engine.object.*;
 import com.volmit.iris.util.collection.KSet;
 import com.volmit.iris.util.context.ChunkContext;
 import com.volmit.iris.util.data.B;
@@ -35,6 +32,8 @@ import com.volmit.iris.util.documentation.ChunkCoordinates;
 import com.volmit.iris.util.mantle.MantleFlag;
 import com.volmit.iris.util.math.RNG;
 import com.volmit.iris.util.matter.MatterStructurePOI;
+import com.volmit.iris.util.noise.CNG;
+import com.volmit.iris.util.noise.NoiseType;
 
 import java.util.Set;
 
@@ -45,7 +44,7 @@ public class MantleObjectComponent extends IrisMantleComponent {
 
     @Override
     public void generateLayer(MantleWriter writer, int x, int z, ChunkContext context) {
-        RNG rng = new RNG(Cache.key(x, z) + seed());
+        RNG rng = applyNoise(x, z, Cache.key(x, z) + seed());
         int xxx = 8 + (x << 4);
         int zzz = 8 + (z << 4);
         IrisRegion region = getComplex().getRegionStream().get(xxx, zzz);
@@ -53,15 +52,17 @@ public class MantleObjectComponent extends IrisMantleComponent {
         placeObjects(writer, rng, x, z, biome, region);
     }
 
+    private RNG applyNoise(int x, int z, long seed) {
+        CNG noise = CNG.signatureFast(new RNG(seed), NoiseType.WHITE, NoiseType.GLOB);
+        return new RNG((long) (seed * noise.noise(x, z)));
+    }
+
     @ChunkCoordinates
     private void placeObjects(MantleWriter writer, RNG rng, int x, int z, IrisBiome biome, IrisRegion region) {
-        long s = Cache.key(x, z) + seed();
-        RNG rnp = new RNG(s);
         for (IrisObjectPlacement i : biome.getSurfaceObjects()) {
             if (rng.chance(i.getChance() + rng.d(-0.005, 0.005))) {
                 try {
-                    placeObject(writer, rnp, x << 4, z << 4, i);
-                    rnp.setSeed(s);
+                    placeObject(writer, rng, x << 4, z << 4, i);
                 } catch (Throwable e) {
                     Iris.reportError(e);
                     Iris.error("Failed to place objects in the following biome: " + biome.getName());
@@ -75,8 +76,7 @@ public class MantleObjectComponent extends IrisMantleComponent {
         for (IrisObjectPlacement i : region.getSurfaceObjects()) {
             if (rng.chance(i.getChance() + rng.d(-0.005, 0.005))) {
                 try {
-                    placeObject(writer, rnp, x << 4, z << 4, i);
-                    rnp.setSeed(s);
+                    placeObject(writer, rng, x << 4, z << 4, i);
                 } catch (Throwable e) {
                     Iris.reportError(e);
                     Iris.error("Failed to place objects in the following region: " + region.getName());
@@ -123,23 +123,19 @@ public class MantleObjectComponent extends IrisMantleComponent {
     }
 
     public Set<String> guess(int x, int z) {
-        RNG rng = new RNG(Cache.key(x, z) + seed());
-        long s = Cache.key(x, z) + seed();
-        RNG rngd = new RNG(s);
+        RNG rng = applyNoise(x, z, Cache.key(x, z) + seed());
         IrisBiome biome = getEngineMantle().getEngine().getSurfaceBiome((x << 4) + 8, (z << 4) + 8);
         IrisRegion region = getEngineMantle().getEngine().getRegion((x << 4) + 8, (z << 4) + 8);
         Set<String> v = new KSet<>();
         for (IrisObjectPlacement i : biome.getSurfaceObjects()) {
             if (rng.chance(i.getChance() + rng.d(-0.005, 0.005))) {
-                v.addAll(guessPlacedKeys(rngd, x, z, i));
-                rngd.setSeed(s);
+                v.addAll(guessPlacedKeys(rng, x, z, i));
             }
         }
 
         for (IrisObjectPlacement i : region.getSurfaceObjects()) {
             if (rng.chance(i.getChance() + rng.d(-0.005, 0.005))) {
-                v.addAll(guessPlacedKeys(rngd, x, z, i));
-                rngd.setSeed(s);
+                v.addAll(guessPlacedKeys(rng, x, z, i));
             }
         }
 
diff --git a/core/src/main/java/com/volmit/iris/engine/object/IrisObject.java b/core/src/main/java/com/volmit/iris/engine/object/IrisObject.java
index 700d1d75f..566ea9bb4 100644
--- a/core/src/main/java/com/volmit/iris/engine/object/IrisObject.java
+++ b/core/src/main/java/com/volmit/iris/engine/object/IrisObject.java
@@ -22,6 +22,7 @@ import com.volmit.iris.Iris;
 import com.volmit.iris.core.loader.IrisData;
 import com.volmit.iris.core.loader.IrisRegistrant;
 import com.volmit.iris.engine.data.cache.AtomicCache;
+import com.volmit.iris.engine.framework.Engine;
 import com.volmit.iris.engine.framework.placer.HeightmapObjectPlacer;
 import com.volmit.iris.util.collection.KList;
 import com.volmit.iris.util.collection.KMap;
@@ -688,6 +689,25 @@ public class IrisObject extends IrisRegistrant {
             return -1;
         }
 
+        if (!config.getAllowedCollisions().isEmpty() || !config.getForbiddenCollisions().isEmpty()) {
+            Engine engine = rdata.getEngine();
+            String key;
+            BlockVector offset = new BlockVector(config.getTranslate().getX(), config.getTranslate().getY(), config.getTranslate().getZ());
+            for (int i = x - Math.floorDiv(w, 2) + (int) offset.getX(); i <= x + Math.floorDiv(w, 2) - (w % 2 == 0 ? 1 : 0) + (int) offset.getX(); i++) {
+                for (int j = y - Math.floorDiv(h, 2)  + (int) offset.getY(); j <= y + Math.floorDiv(h, 2) - (h % 2 == 0 ? 1 : 0) + (int) offset.getY(); j++) {
+                    for (int k = z - Math.floorDiv(d, 2) + (int) offset.getZ(); k <= z + Math.floorDiv(d, 2) - (d % 2 == 0 ? 1 : 0) + (int) offset.getX(); k++) {
+                        key = engine.getObjectPlacementKey(i, j, k);
+                        if (key != null) {
+                            if (config.getForbiddenCollisions().contains(key) && !config.getAllowedCollisions().contains(key)) {
+                                Iris.warn("%s collides with %s (%s / %s / %s)", getLoadKey(), key, i, j, k);
+                                return -1;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
         if (config.isBore()) {
             BlockVector offset = new BlockVector(config.getTranslate().getX(), config.getTranslate().getY(), config.getTranslate().getZ());
             for (int i = x - Math.floorDiv(w, 2) + (int) offset.getX(); i <= x + Math.floorDiv(w, 2) - (w % 2 == 0 ? 1 : 0) + (int) offset.getX(); i++) {
diff --git a/core/src/main/java/com/volmit/iris/engine/object/IrisObjectPlacement.java b/core/src/main/java/com/volmit/iris/engine/object/IrisObjectPlacement.java
index 9ae7be341..813ef8c4a 100644
--- a/core/src/main/java/com/volmit/iris/engine/object/IrisObjectPlacement.java
+++ b/core/src/main/java/com/volmit/iris/engine/object/IrisObjectPlacement.java
@@ -128,6 +128,14 @@ public class IrisObjectPlacement {
     @Desc("This object / these objects override the following trees when they grow...")
     @ArrayType(min = 1, type = IrisTree.class)
     private KList<IrisTree> trees = new KList<>();
+    @RegistryListResource(IrisObject.class)
+    @ArrayType(type = String.class)
+    @Desc("List of objects to this object is allowed to collied with")
+    private KList<String> allowedCollisions = new KList<>();
+    @RegistryListResource(IrisObject.class)
+    @ArrayType(type = String.class)
+    @Desc("List of objects to this object is forbidden to collied with")
+    private KList<String> forbiddenCollisions = new KList<>();
     private transient AtomicCache<TableCache> cache = new AtomicCache<>();
 
     public IrisObjectPlacement toPlacement(String... place) {