Can i actually push an update from here? I do hope so...

CHANGELOG.md

@@ -1,2 +1 @@
-- Added support for 1.21. (Thanks @ImUrX!)
-- Fix elytra transparency button tooltip.
+- Modified mod config loading system to hopefully prevent compatibility issues.

gradle.properties

@@ -8,7 +8,7 @@ deps.yarn=1.21+build.2
 deps.fabricloader=0.15.11
 
 # Mod Properties
-mod_version = 1.11.1
+mod_version = 1.11.2
 maven_group = nl.enjarai
 archives_base_name = show-me-your-skin
 

src/main/java/nl/enjarai/showmeyourskin/ShowMeYourSkinClient.java

@@ -31,7 +31,6 @@ public class ShowMeYourSkinClient implements ClientModInitializer, CicadaEntrypo
 
 	@Override
 	public void onInitializeClient() {
-		ModConfig.load();
 		ModConfig.INSTANCE.ensureValid();
 
 		ModKeyBindings.register();

src/main/java/nl/enjarai/showmeyourskin/config/ModConfig.java

@@ -1,31 +1,23 @@
 package nl.enjarai.showmeyourskin.config;
 
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
 import net.fabricmc.loader.api.FabricLoader;
 import net.minecraft.client.MinecraftClient;
 import net.minecraft.entity.EquipmentSlot;
 import net.minecraft.util.math.MathHelper;
+import nl.enjarai.cicada.api.util.AbstractModConfig;
 import nl.enjarai.showmeyourskin.Components;
 import nl.enjarai.showmeyourskin.ShowMeYourSkin;
 import nl.enjarai.showmeyourskin.ShowMeYourSkinClient;
 import nl.enjarai.showmeyourskin.util.CombatLogger;
 
-import java.io.*;
-import java.nio.charset.StandardCharsets;
+import java.nio.file.Path;
 import java.util.HashMap;
 import java.util.UUID;
 import java.util.function.Function;
 
-public class ModConfig {
-    public static final File CONFIG_FILE = new File(FabricLoader.getInstance().getConfigDir() + "/" + ShowMeYourSkin.MODID + ".json");
-    public static ModConfig INSTANCE;
-
-    private static final Gson GSON = new GsonBuilder()
-            .setPrettyPrinting() // Makes the json use new lines instead of being a "one-liner"
-            .serializeNulls() // Makes fields with `null` value to be written as well.
-            .disableHtmlEscaping() // We'll be able to use custom chars without them being saved differently
-            .create();
+public class ModConfig extends AbstractModConfig {
+    public static final Path CONFIG_FILE = FabricLoader.getInstance().getConfigDir().resolve(ShowMeYourSkin.MODID + ".json");
+    public static ModConfig INSTANCE = loadConfigFile(CONFIG_FILE, new ModConfig());
 
     public boolean globalEnabled = true;
     public boolean overridesEnabledInServerMode = false;
@@ -137,57 +129,4 @@ public void ensureValid() {
 
         save();
     }
-
-
-
-    public static void load() {
-        INSTANCE = loadConfigFile(CONFIG_FILE);
-    }
-
-    public void save() {
-        saveConfigFile(CONFIG_FILE);
-    }
-
-    /**
-     * Loads config file.
-     *
-     * @param file file to load the config file from.
-     * @return ConfigManager object
-     */
-    private static ModConfig loadConfigFile(File file) {
-        ModConfig config = null;
-
-        if (file.exists()) {
-            // An existing config is present, we should use its values
-            try (BufferedReader fileReader = new BufferedReader(
-                    new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8)
-            )) {
-                // Parses the config file and puts the values into config object
-                config = GSON.fromJson(fileReader, ModConfig.class);
-            } catch (IOException e) {
-                throw new RuntimeException("Problem occurred when trying to load config: ", e);
-            }
-        }
-        // gson.fromJson() can return null if file is empty
-        if (config == null) {
-            config = new ModConfig();
-        }
-
-        // Saves the file in order to write new fields if they were added
-        config.saveConfigFile(file);
-        return config;
-    }
-
-    /**
-     * Saves the config to the given file.
-     *
-     * @param file file to save config to
-     */
-    private void saveConfigFile(File file) {
-        try (Writer writer = new OutputStreamWriter(new FileOutputStream(file), StandardCharsets.UTF_8)) {
-            GSON.toJson(this, writer);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-    }
 }