Why you no work

src/main/java/com/falsepattern/endlessids/mixin/mixins/common/biome/galaxyspace/ChunkProviderSpaceLakesGTNHMixin.java

@@ -0,0 +1,60 @@
+/*
+ * 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.biome.galaxyspace;
+
+import com.falsepattern.endlessids.mixin.helpers.BiomePatchHelper;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import net.minecraft.world.biome.BiomeGenBase;
+import net.minecraft.world.chunk.Chunk;
+
+@Pseudo
+@Mixin(targets = "galaxyspace.core.dimension.ChunkProviderSpaceLakes",
+       remap = false)
+
+public abstract class ChunkProviderSpaceLakesGTNHMixin 
+{
+    @Shadow
+    protected BiomeGenBase[] biomesForGeneration;
+
+    /**
+     * @author Cardinalstar16
+     * @reason The Galaxy-space mod maintained by GTNH has a different class layout than
+     * non-GTNH versions of galaxy space. Additionally, biomesForGeneration must be 
+     * shadowed with protected access rather than private since GTNH galaxy space also applies
+     * an access transformer on the biomesForGenerationField.
+     */
+    @SuppressWarnings("UnresolvedMixinReference")
+    @Redirect(method = "func_73154_d",
+              at = @At(value = "INVOKE",
+                       target = "Lnet/minecraft/world/chunk/Chunk;func_76605_m()[B"),
+              require = 0,
+              expect = 0)
+    private byte[] setBiomesTweaked(Chunk chunk) {
+        return BiomePatchHelper.getBiomeArrayTweaked(chunk, biomesForGeneration);
+    }
+}

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

@@ -39,10 +39,14 @@ public class NibbleArrayMixin {
     @Shadow private int depthBits;     // depthBits
     @Shadow private int depthBitsPlusFour;     // depthBitsPlusFour
     
+    @SuppressWarnings("MixinAnnotationTarget")
     @Shadow private int length;
+    @SuppressWarnings("MixinAnnotationTarget")
     @Shadow private byte trivialByte;
+    @SuppressWarnings("MixinAnnotationTarget")
     @Shadow private byte trivialValue;
     
+        @SuppressWarnings("MixinAnnotationTarget")
         @Inject(
                 method = "detectAndProcessTrivialArray",
                 at = @At(

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

@@ -283,6 +283,7 @@ public enum Mixin implements IMixins {
                       common("biome.galaxyspace.ChunkProviderKuiperMixin",
                              "biome.galaxyspace.ChunkProviderMarsSSMixin",
                              "biome.galaxyspace.ChunkProviderSpaceLakesMixin",
+                             "biome.galaxyspace.ChunkProviderSpaceLakesGTNHMixin",
                              "biome.galaxyspace.ChunkProviderVenusSSMixin")),
 
     Biome_Highlands(Phase.LATE,