Sort of a fix. Probably want to move to chunkapi rather than EID. It's unclear

build.gradle.kts

@@ -88,14 +88,6 @@ dependencies {
     // endregion
 
     // region unmaintained mods
-
-    devOnlyNonPublishable("com.github.GTNewHorizons:Galaxy-Space-GTNH:1.1.126-GTNH:dev") { isTransitive = false }
-    devOnlyNonPublishable("com.github.GTNewHorizons:Galacticraft:3.4.15-GTNH:dev") { isTransitive = false }
-    devOnlyNonPublishable("com.github.GTNewHorizons:NotEnoughItems:2.8.50-GTNH:dev") { isTransitive = false}
-    devOnlyNonPublishable("com.github.GTNewHorizons:CodeChickenCore:1.4.7:dev") { isTransitive = false}
-    devOnlyNonPublishable("curse.maven:industrial-craft-242638:6833054") { isTransitive = false }
-    devOnlyNonPublishable("com.github.GTNewHorizons:TinkersConstruct:1.14.17-GTNH:dev") { isTransitive = false }
-    devOnlyNonPublishable("com.github.GTNewHorizons:Mantle:0.5.1:dev")
     
     //AbyssalCraft 1.9.1.3-FINAL
     compileOnly(deobfCurse("abyssalcraft-53686:2311135"))

src/main/java/com/falsepattern/endlessids/mixin/mixins/common/blockitem/thermos/NibbleArrayMixin.java

@@ -0,0 +1,69 @@
+/*
+ * EndlessIDs
+ *
+ * Copyright (C) 2022-2025 FalsePattern, The MEGA Team
+ * All Rights Reserved
+ *
+ * The above copyright notice, this permission notice and the word "MEGA"
+ * shall be included in all copies or substantial portions of the Software.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, only version 3 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.falsepattern.endlessids.mixin.mixins.common.blockitem.thermos;
+
+import org.spongepowered.asm.lib.Opcodes;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import net.minecraft.world.chunk.NibbleArray;
+
+@Mixin(NibbleArray.class)
+public class NibbleArrayMixin {
+
+    @Shadow
+    public byte[] data; // Thermos renamed 'data'
+    @Shadow private int depthBits;     // depthBits
+    @Shadow private int depthBitsPlusFour;     // depthBitsPlusFour
+    
+    @Shadow private int length;
+    @Shadow private byte trivialByte;
+    @Shadow private byte trivialValue;
+    
+        @Inject(
+                method = "detectAndProcessTrivialArray",
+                at = @At(
+                        value = "FIELD",
+                        opcode = Opcodes.PUTFIELD,
+                        target = "Lnet/minecraft/world/chunk/NibbleArray;data:[B",
+                        shift = At.Shift.BEFORE
+                ),
+                cancellable = true)
+        private void logBeforeNull(CallbackInfo ci) {
+            ci.cancel();
+        }
+
+    @Inject(method = "<init>(II)V", at = @At("RETURN"))
+    private void fixConstructor(int par1, int par2, CallbackInfo ci) {
+        this.data = new byte[par1 >> 1];
+        this.depthBits = par2;
+        this.depthBitsPlusFour = par2 + 4;
+        this.length = par1 >> 1;
+        this.trivialValue = 0;
+        this.trivialByte = 0;
+    }
+        
+}

src/main/java/com/falsepattern/endlessids/mixin/plugin/Mixin.java

@@ -277,7 +277,7 @@ public enum Mixin implements IMixins {
                        common("biome.galacticraft.ChunkProviderOrbitMixin",
                               "biome.galacticraft.ConfigManagerCoreMixin")),
 
-    Biome_GalaxySpace(Phase.EARLY,
+    Biome_GalaxySpace(Phase.LATE,
                       Ext.Biome,
                       require(GalaxySpace),
                       common("biome.galaxyspace.ChunkProviderKuiperMixin",
@@ -434,7 +434,8 @@ public enum Mixin implements IMixins {
                              "blockitem.vanilla.S22PacketMultiBlockChangeMixin",
                              "blockitem.vanilla.S24PacketBlockActionMixin",
                              "blockitem.vanilla.StatListMixin",
-                             "blockitem.vanilla.WorldMixin"),
+                             "blockitem.vanilla.WorldMixin",
+                             "blockitem.thermos.NibbleArrayMixin"),
                       client("blockitem.vanilla.PlayerControllerMPMixin",
                              "blockitem.vanilla.RenderGlobalMixin")),