diff --git a/build.gradle.kts b/build.gradle.kts
index 48a7472..c3a3d92 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -24,14 +24,14 @@ repositories {
     }
 }
 
-val muscriptVersion = "1.7-SNAPSHOT"
-val modmenuVersion = "10.0.0-beta.1"
+val muscriptVersion = "2.0.0-SNAPSHOT"
+val modmenuVersion = "11.0.0-beta.1"
 jfMod {
-    minecraftVersion = "1.20.6"
+    minecraftVersion = "1.21"
     yarn("build.1")
-    loaderVersion = "0.15.10"
-    libJfVersion = "3.15.8"
-    fabricApiVersion = "0.97.8+1.20.6"
+    loaderVersion = "0.15.11"
+    libJfVersion = "3.16.0"
+    fabricApiVersion = "0.100.1+1.21"
 
     modrinth {
         projectId = "respackopts"
@@ -74,5 +74,5 @@ dependencies {
     //modClientRuntimeOnly("io.vram:canvas-fabric:20.2.+")
 
     // Sodium for debugging
-    modClientRuntimeOnly("maven.modrinth:sodium:mc1.20.6-0.5.8")
+    modClientRuntimeOnly("maven.modrinth:sodium:mc1.21-0.5.9")
 }
diff --git a/src/client/java/io/gitlab/jfronny/respackopts/RespackoptsClient.java b/src/client/java/io/gitlab/jfronny/respackopts/RespackoptsClient.java
index 1e6aaa7..d41de0d 100644
--- a/src/client/java/io/gitlab/jfronny/respackopts/RespackoptsClient.java
+++ b/src/client/java/io/gitlab/jfronny/respackopts/RespackoptsClient.java
@@ -18,7 +18,7 @@ import java.util.concurrent.CompletableFuture;
 @Environment(EnvType.CLIENT)
 public class RespackoptsClient implements ClientModInitializer, SaveHook {
     private static final boolean FREX_LOADED = FabricLoader.getInstance().isModLoaded("frex");
-    public static final Identifier RPO_SHADER_ID = new Identifier(Respackopts.ID, "config_supplier");
+    public static final Identifier RPO_SHADER_ID = Identifier.of(Respackopts.ID, "config_supplier");
     public static boolean forcePackReload = false;
     private static String shaderImportSource;
 
diff --git a/src/client/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackEntryMixin.java b/src/client/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackEntryMixin.java
index 1b7ce83..b126659 100644
--- a/src/client/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackEntryMixin.java
+++ b/src/client/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackEntryMixin.java
@@ -34,7 +34,7 @@ public abstract class ResourcePackEntryMixin {
             d = widget.getRowWidth() - d;
             int e = mouseY - y;
             rpo$selected = d <= 32 && d >= 12 && e <= entryHeight / 2 + 10 && e >= entryHeight / 2 - 10;
-            rpo$renderButton(context, rpo$selected, new Identifier("modmenu", "textures/gui/configure_button.png"), x + entryWidth - 30, y + entryHeight / 2 - 10);
+            rpo$renderButton(context, rpo$selected, Identifier.of("modmenu", "textures/gui/configure_button.png"), x + entryWidth - 30, y + entryHeight / 2 - 10);
         }
     }
 
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/filters/util/FileFallbackProvider.java b/src/main/java/io/gitlab/jfronny/respackopts/filters/util/FileFallbackProvider.java
index 440d7c3..ceaf30b 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/filters/util/FileFallbackProvider.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/filters/util/FileFallbackProvider.java
@@ -50,7 +50,7 @@ public class FileFallbackProvider {
         if (FileRpoSearchProvider.isRpo(path)) {
             String expectedTarget = path.substring(0, path.length() - Respackopts.FILE_EXTENSION.length());
             if (ids.stream().noneMatch(s -> s.getPath().equals(expectedTarget)) && fileHasFallback(key, fs, type.getDirectory() + "/" + expectedTarget)) {
-                Identifier id = new Identifier(namespace, expectedTarget);
+                Identifier id = Identifier.of(namespace, expectedTarget);
                 ids.add(id);
                 out.accept(id, fs.open(type, id));
             }
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/BoolExprDeserializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/BoolExprDeserializer.java
index c35769f..430640d 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/BoolExprDeserializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/BoolExprDeserializer.java
@@ -28,7 +28,7 @@ public class BoolExprDeserializer extends TypeAdapter<BoolExpr> {
     public static final BoolExprDeserializer INSTANCE = new BoolExprDeserializer();
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> BoolExpr deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> BoolExpr deserialize(Reader reader) throws TEx, MalformedDataException {
         if (AttachmentHolder.getAttachedVersion() > 7) {
             return ExprUtils.asBool(ExprDeserializer.INSTANCE.deserialize(reader));
         }
@@ -68,7 +68,7 @@ public class BoolExprDeserializer extends TypeAdapter<BoolExpr> {
         }
     }
 
-    private <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> BoolExpr merge(Reader source, Token token) throws TEx, MalformedDataException {
+    private <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> BoolExpr merge(Reader source, Token token) throws TEx, MalformedDataException {
         if (token == Token.BangEqual)
             return new Not(CodeLocation.NONE, merge(source, Token.EqualEqual));
         List<BoolExpr> expressions = new ArrayList<>();
@@ -114,7 +114,7 @@ public class BoolExprDeserializer extends TypeAdapter<BoolExpr> {
     }
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(BoolExpr boolExpr, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(BoolExpr boolExpr, Writer writer) throws TEx, MalformedDataException {
         ExprDeserializer.INSTANCE.serialize(boolExpr, writer);
     }
 }
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/ConditionDeserializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/ConditionDeserializer.java
index 2b455ff..f6ff435 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/ConditionDeserializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/ConditionDeserializer.java
@@ -12,12 +12,12 @@ import io.gitlab.jfronny.respackopts.model.Condition;
 @SerializerFor(targets = Condition.class)
 public class ConditionDeserializer extends TypeAdapter<Condition> {
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(Condition condition, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(Condition condition, Writer writer) throws TEx, MalformedDataException {
         BoolExprDeserializer.INSTANCE.serialize(condition.expr(), writer);
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> Condition deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> Condition deserialize(Reader reader) throws TEx, MalformedDataException {
         String source = "Source unavailable";
         if (reader.peek() == Token.STRING) {
             source = reader.nextString();
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/ConfigEntryTypeAdapter.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/ConfigEntryTypeAdapter.java
index 33926ee..735a6b4 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/ConfigEntryTypeAdapter.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/ConfigEntryTypeAdapter.java
@@ -18,7 +18,7 @@ import io.gitlab.jfronny.respackopts.model.tree.*;
 @SerializerFor(targets = ConfigEntry.class)
 public class ConfigEntryTypeAdapter extends TypeAdapter<ConfigEntry<?>> {
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigEntry<?> entry, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(ConfigEntry<?> entry, Writer writer) throws TEx, MalformedDataException {
         switch (entry) {
             case ConfigBooleanEntry bl -> GC_ConfigBooleanEntry.serialize(bl, writer);
             case ConfigNumericEntry num -> GC_ConfigNumericEntry.serialize(num, writer);
@@ -30,7 +30,7 @@ public class ConfigEntryTypeAdapter extends TypeAdapter<ConfigEntry<?>> {
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigEntry<?> deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> ConfigEntry<?> deserialize(Reader reader) throws TEx, MalformedDataException {
         return switch (reader.peek()) {
             case BOOLEAN -> GC_ConfigBooleanEntry.deserialize(reader);
             case NUMBER -> GC_ConfigNumericEntry.deserialize(reader);
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/ExprDeserializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/ExprDeserializer.java
index 5b7abd2..04a8712 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/ExprDeserializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/ExprDeserializer.java
@@ -21,12 +21,12 @@ public class ExprDeserializer extends TypeAdapter<Expr> {
     private static final Map<String, Expr> compiledScripts = new HashMap<>();
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(Expr expr, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(Expr expr, Writer writer) throws TEx, MalformedDataException {
         writer.value(Decompiler.decompile(expr));
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> Expr deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> Expr deserialize(Reader reader) throws TEx, MalformedDataException {
         if (reader.peek() == Token.STRING) {
             return parse(reader.nextString());
         } else if (reader.peek() == Token.BEGIN_OBJECT) {
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/StringExprDeserializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/StringExprDeserializer.java
index bc871e0..aa5dcb9 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/StringExprDeserializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/StringExprDeserializer.java
@@ -11,12 +11,12 @@ import io.gitlab.jfronny.muscript.ast.context.ExprUtils;
 @SerializerFor(targets = StringExpr.class)
 public class StringExprDeserializer extends TypeAdapter<StringExpr> {
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(StringExpr stringExpr, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(StringExpr stringExpr, Writer writer) throws TEx, MalformedDataException {
         ExprDeserializer.INSTANCE.serialize(stringExpr, writer);
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> StringExpr deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> StringExpr deserialize(Reader reader) throws TEx, MalformedDataException {
         return ExprUtils.asString(ExprDeserializer.INSTANCE.deserialize(reader));
     }
 }
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/BooleanEntrySerializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/BooleanEntrySerializer.java
index feb9566..8508225 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/BooleanEntrySerializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/BooleanEntrySerializer.java
@@ -16,12 +16,12 @@ public class BooleanEntrySerializer extends TypeAdapter<ConfigBooleanEntry> {
     public static final Set<String> TYPES = Set.of("boolean", "toggle");
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigBooleanEntry configBooleanEntry, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(ConfigBooleanEntry configBooleanEntry, Writer writer) throws TEx, MalformedDataException {
         writer.value(configBooleanEntry.getValue());
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigBooleanEntry deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> ConfigBooleanEntry deserialize(Reader reader) throws TEx, MalformedDataException {
         if (reader.peek() == Token.BOOLEAN) {
             return new ConfigBooleanEntry(reader.nextBoolean());
         } else if (reader.peek() == Token.BEGIN_OBJECT) {
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/ConfigBranchSerializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/ConfigBranchSerializer.java
index 3573bb0..a6d1221 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/ConfigBranchSerializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/ConfigBranchSerializer.java
@@ -15,7 +15,7 @@ import java.util.Map;
 @SerializerFor(targets = ConfigBranch.class)
 public class ConfigBranchSerializer extends TypeAdapter<ConfigBranch> {
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigBranch configBranch, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(ConfigBranch configBranch, Writer writer) throws TEx, MalformedDataException {
         writer.beginObject();
         for (Map.Entry<String, ConfigEntry<?>> entry : configBranch.getValue().entrySet()) {
             writer.name(entry.getKey());
@@ -25,7 +25,7 @@ public class ConfigBranchSerializer extends TypeAdapter<ConfigBranch> {
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigBranch deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> ConfigBranch deserialize(Reader reader) throws TEx, MalformedDataException {
         if (reader.peek() != Token.BEGIN_OBJECT) throw new MalformedDataException("ConfigBranch is not an object");
         reader.beginObject();
         ConfigBranch cbNew = new ConfigBranch();
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/EnumEntrySerializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/EnumEntrySerializer.java
index dee1eb3..dc2029f 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/EnumEntrySerializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/EnumEntrySerializer.java
@@ -18,12 +18,12 @@ public class EnumEntrySerializer extends TypeAdapter<ConfigEnumEntry> {
     public static final Set<String> TYPES = Set.of("enum", "select");
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigEnumEntry configEnumEntry, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(ConfigEnumEntry configEnumEntry, Writer writer) throws TEx, MalformedDataException {
         writer.value(configEnumEntry.getValue());
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigEnumEntry deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> ConfigEnumEntry deserialize(Reader reader) throws TEx, MalformedDataException {
         ConfigEnumEntry result = new ConfigEnumEntry();
         if (reader.peek() == Token.STRING) {
             result.setValue(reader.nextString());
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/NumericEntrySerializer.java b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/NumericEntrySerializer.java
index aecd354..94e38ff 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/NumericEntrySerializer.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/gson/entry/NumericEntrySerializer.java
@@ -17,12 +17,12 @@ public class NumericEntrySerializer extends TypeAdapter<ConfigNumericEntry> {
     public static final Set<String> INT_TYPES = Set.of("integer", "int", "long", "whole");
 
     @Override
-    public <TEx extends Exception, Writer extends SerializeWriter<TEx, Writer>> void serialize(ConfigNumericEntry configNumericEntry, Writer writer) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Writer extends SerializeWriter<TEx, ?>> void serialize(ConfigNumericEntry configNumericEntry, Writer writer) throws TEx, MalformedDataException {
         writer.value(configNumericEntry.getValue());
     }
 
     @Override
-    public <TEx extends Exception, Reader extends SerializeReader<TEx, Reader>> ConfigNumericEntry deserialize(Reader reader) throws TEx, MalformedDataException {
+    public <TEx extends Exception, Reader extends SerializeReader<TEx, ?>> ConfigNumericEntry deserialize(Reader reader) throws TEx, MalformedDataException {
         ConfigNumericEntry result = new ConfigNumericEntry();
         if (reader.peek() == Token.NUMBER) {
             double value = reader.nextDouble();
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackManagerMixin.java b/src/main/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackManagerMixin.java
index c207cb0..accc12c 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackManagerMixin.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/mixin/ResourcePackManagerMixin.java
@@ -73,7 +73,7 @@ public class ResourcePackManagerMixin {
             }
         }
 
-        Identifier confId = new Identifier(Respackopts.ID, "conf.json");
+        Identifier confId = Identifier.of(Respackopts.ID, "conf.json");
         for (ResourceType type : ResourceType.values()) {
             conf = rpi.open(type, confId);
             if (conf != null) {
diff --git a/src/main/java/io/gitlab/jfronny/respackopts/util/FallbackI18n.java b/src/main/java/io/gitlab/jfronny/respackopts/util/FallbackI18n.java
index 7506c4c..dbc4b25 100644
--- a/src/main/java/io/gitlab/jfronny/respackopts/util/FallbackI18n.java
+++ b/src/main/java/io/gitlab/jfronny/respackopts/util/FallbackI18n.java
@@ -19,7 +19,7 @@ public class FallbackI18n {
     public static Map<String, String> loadFrom(ResourcePack pack, String packId) {
         Map<String, String> translations = new HashMap<>();
         for (String namespace : pack.getNamespaces(ResourceType.CLIENT_RESOURCES)) {
-            var translation = pack.open(ResourceType.CLIENT_RESOURCES, new Identifier(namespace, "lang/en_us.json"));
+            var translation = pack.open(ResourceType.CLIENT_RESOURCES, Identifier.of(namespace, "lang/en_us.json"));
             if (translation == null) continue;
             try (InputStream is = translation.get()) {
                 Language.load(is, (key, value) -> {