Add keybinds and use fabric's mixins for the :common gradle project.

common/build.gradle.kts

@@ -1,13 +1,5 @@
-architectury {
-    common()
-}
-repositories {
-    maven {
-        name = "SpongePowered"
-        url = uri("https://repo.spongepowered.org/repository/maven-public/")
-    }
-}
+architectury { common() }
 dependencies {
-    compileOnly("org.spongepowered:mixin:0.8-SNAPSHOT")
+    modImplementation("net.fabricmc:fabric-loader:${rootProject.property("fabric_loader_version")}")
 }
 

common/src/main/java/fr/username404/snowygui/mixins/KeyMappings.java

@@ -0,0 +1,41 @@
+package fr.username404.snowygui.mixins;
+
+import com.google.common.collect.Lists;
+import net.minecraft.client.KeyMapping;
+import net.minecraft.client.Minecraft;
+import net.minecraft.client.Options;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Mutable;
+import org.spongepowered.asm.mixin.Shadow;
+import fr.username404.snowygui.config.AddKeyMaps;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.io.File;
+import java.util.List;
+import java.util.Map;
+import java.util.Optional;
+
+@Mixin(Options.class)
+class KeyMappings {
+	private static final List<KeyMapping> keysToAdd = AddKeyMaps.INSTANCE.getList();
+
+	@Mutable @Shadow @Final public KeyMapping[] keyMappings;
+
+	@Inject(method = "<init>*", at = @At("RETURN"))
+	private void onSettingsConstructed(Minecraft minecraft, File file, CallbackInfo ci) {
+		Map<String, Integer> categoryMap = keysAccessor.getSortedCategoryMap();
+		List<KeyMapping> newKeys = Lists.newArrayList(keyMappings);
+		for (KeyMapping key : keysToAdd) {
+			if (!categoryMap.containsKey(key.getCategory())) {
+				Optional<Integer> biggest = categoryMap.values().stream().max(Integer::compareTo); int biggestInt = biggest.orElse(0);
+				categoryMap.put(key.getCategory(), biggestInt + 1);
+			}
+			newKeys.remove(key);
+			newKeys.add(key);
+		}
+		keyMappings = newKeys.toArray(new KeyMapping[0]);
+	}
+}

common/src/main/java/fr/username404/snowygui/mixins/keysAccessor.java

@@ -0,0 +1,13 @@
+package fr.username404.snowygui.mixins;
+
+import net.minecraft.client.KeyMapping;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.gen.Accessor;
+
+import java.util.Map;
+
+@Mixin(KeyMapping.class)
+public class keysAccessor {
+	@Accessor("CATEGORY_SORT_ORDER")
+	static Map<String, Integer> getSortedCategoryMap() { throw new AssertionError(); }
+}

common/src/main/kotlin/fr/username404/snowygui/config/AddKeyMaps.kt

@@ -0,0 +1,22 @@
+package fr.username404.snowygui.config
+
+import com.mojang.blaze3d.platform.InputConstants
+import net.minecraft.client.KeyMapping
+import org.lwjgl.glfw.GLFW.GLFW_KEY_U
+import org.lwjgl.glfw.GLFW.GLFW_KEY_Y
+
+object AddKeyMaps {
+    private const val prefix = "snowy"
+    private fun mkMap(translationSuffix: String, key: Int, category: String = "keycategory"): KeyMapping {
+        return KeyMapping(
+            "$prefix.$translationSuffix", InputConstants.Type.KEYSYM,
+            key, category
+        )
+    }
+    fun getList(): List<KeyMapping> {
+        return listOf(
+            mkMap("opengui", GLFW_KEY_Y),
+            mkMap("configkey", GLFW_KEY_U)
+        )
+    }
+}

common/src/main/resources/snowygui-mixins.json

@@ -2,7 +2,10 @@
   "required": true,
   "package": "fr.username404.snowygui.mixins",
   "compatibilityLevel": "JAVA_8",
-  "client": [],
+  "client": [
+    "keysAccessor",
+    "KeyMappings"
+  ],
   "injectors": {
     "defaultRequire": 1
   },