diff --git a/sources/pom.xml b/sources/pom.xml
index ccc5702d1..f933fcee7 100644
--- a/sources/pom.xml
+++ b/sources/pom.xml
@@ -126,7 +126,7 @@
         <dependency>
             <groupId>io.akarin</groupId>
             <artifactId>legacylauncher</artifactId>
-            <version>1.20</version>
+            <version>1.22</version>
         </dependency>
         <dependency>
             <groupId>org.spongepowered</groupId>
diff --git a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBan.java b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBan.java
index 2dc0c011a..ef3dc7d00 100644
--- a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBan.java
+++ b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBan.java
@@ -20,7 +20,7 @@ import net.minecraft.server.ICommandListener;
 import net.minecraft.server.MinecraftServer;
 
 @Mixin(value = CommandBan.class, remap = false)
-public class MixinCommandBan {
+public abstract class MixinCommandBan {
     @Overwrite
     public void execute(MinecraftServer server, ICommandListener sender, String[] args) throws CommandException {
         if (args.length >= 1 && args[0].length() > 1) {
diff --git a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBanIp.java b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBanIp.java
index deda36ad0..68f8fa6ad 100644
--- a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBanIp.java
+++ b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandBanIp.java
@@ -18,7 +18,7 @@ import net.minecraft.server.IpBanEntry;
 import net.minecraft.server.MinecraftServer;
 
 @Mixin(value = CommandBanIp.class, remap = false)
-public class MixinCommandBanIp {
+public abstract class MixinCommandBanIp {
     @Overwrite // PAIL: banIp
     protected void a(MinecraftServer server, ICommandListener sender, String args, @Nullable String banReason) {
         // Akarin start - modify message
diff --git a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandKick.java b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandKick.java
index 710f05ce4..05c55a096 100644
--- a/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandKick.java
+++ b/sources/src/main/java/io/akarin/server/mixin/core/MixinCommandKick.java
@@ -14,7 +14,7 @@ import net.minecraft.server.ICommandListener;
 import net.minecraft.server.MinecraftServer;
 
 @Mixin(value = CommandKick.class, remap = false)
-public class MixinCommandKick {
+public abstract class MixinCommandKick {
     @Overwrite
     public void execute(MinecraftServer server, ICommandListener sender, String[] args) throws CommandException {
         if (args.length > 0 && args[0].length() > 1) {
diff --git a/sources/src/main/java/io/akarin/server/mixin/core/MixinCraftServer.java b/sources/src/main/java/io/akarin/server/mixin/core/MixinCraftServer.java
index b086614ba..7b2b10706 100644
--- a/sources/src/main/java/io/akarin/server/mixin/core/MixinCraftServer.java
+++ b/sources/src/main/java/io/akarin/server/mixin/core/MixinCraftServer.java
@@ -12,7 +12,7 @@ import me.nallar.whocalled.WhoCalled;
 import net.minecraft.server.MinecraftServer;
 
 @Mixin(value = CraftServer.class, remap = false)
-public class MixinCraftServer {
+public abstract class MixinCraftServer {
     @Shadow @Final @Mutable private String serverName;
     @Shadow @Final protected MinecraftServer console;
     private boolean needApplyServerName = true;
diff --git a/sources/src/main/java/io/akarin/server/mixin/core/MixinMCUtil.java b/sources/src/main/java/io/akarin/server/mixin/core/MixinMCUtil.java
index 5f7c17327..cfbf66066 100644
--- a/sources/src/main/java/io/akarin/server/mixin/core/MixinMCUtil.java
+++ b/sources/src/main/java/io/akarin/server/mixin/core/MixinMCUtil.java
@@ -8,7 +8,7 @@ import org.spongepowered.asm.mixin.Overwrite;
 import net.minecraft.server.MCUtil;
 
 @Mixin(value = MCUtil.class, remap = false)
-public class MixinMCUtil {
+public abstract class MixinMCUtil {
     @Overwrite
     public static <T> T ensureMain(String reason, Supplier<T> run) {
         return run.get();
diff --git a/sources/src/main/java/io/akarin/server/mixin/optimization/WeakBigTree.java b/sources/src/main/java/io/akarin/server/mixin/optimization/WeakBigTree.java
index b869526ef..707baecc6 100644
--- a/sources/src/main/java/io/akarin/server/mixin/optimization/WeakBigTree.java
+++ b/sources/src/main/java/io/akarin/server/mixin/optimization/WeakBigTree.java
@@ -16,7 +16,7 @@ import net.minecraft.server.WorldGenBigTree;
  * Fixes MC-128547(https://bugs.mojang.com/browse/MC-128547)
  */
 @Mixin(value = WorldGenBigTree.class, remap = false)
-public class WeakBigTree {
+public abstract class WeakBigTree {
     @Shadow(aliases = "l") private World worldReference;
     
     @Inject(method = "generate", at = @At("RETURN"))
diff --git a/sources/src/main/resources/mixins.akarin.core.json b/sources/src/main/resources/mixins.akarin.core.json
index f30e2ce50..00cc391eb 100644
--- a/sources/src/main/resources/mixins.akarin.core.json
+++ b/sources/src/main/resources/mixins.akarin.core.json
@@ -25,37 +25,14 @@
         "core.MixinMinecraftServer",
         "core.MixinChunkIOExecutor",
         
-        "cps.MixinChunk",
         "cps.MixinCraftWorld",
         "cps.MixinChunkProviderServer",
         
         "nsc.OptimisticNetworkManager",
         "nsc.NonblockingServerConnection",
         
-        "lighting.MixinChunk",
-        "lighting.MixinWorld",
-        "lighting.MixinWorldServer",
-        "lighting.MixinChunkProviderServer",
-        
-        "realtime.MixinWorld",
-        "realtime.MixinEntity",
-        "realtime.MixinEntityItem",
-        "realtime.MixinWorldServer",
-        "realtime.MixinEntityHuman",
-        "realtime.MixinEntityPlayer",
-        "realtime.MixinEntityAgeable",
-        "realtime.MixinMinecraftServer",
-        "realtime.MixinEntityInsentient",
-        "realtime.MixinPlayerConnection",
-        "realtime.MixinTileEntityFurnace",
-        "realtime.MixinEntityExperienceOrb",
-        "realtime.MixinEntityZombieVillager",
-        "realtime.MixinPlayerInteractManager",
-        "realtime.MixinTileEntityBrewingStand",
-        
         "optimization.WeakBigTree",
         "optimization.MixinPlayerChunk",
-		"optimization.PandaRedstoneWire",
         "optimization.WeakEnchantmentManager",
         "optimization.MixinEntityHorseAbstract",
         "optimization.MixinEntityTameableAnimal",
diff --git a/sources/src/main/resources/mixins.akarin.optimization.lighting.json b/sources/src/main/resources/mixins.akarin.optimization.lighting.json
new file mode 100644
index 000000000..db72947a7
--- /dev/null
+++ b/sources/src/main/resources/mixins.akarin.optimization.lighting.json
@@ -0,0 +1,15 @@
+{
+    "required": true,
+    "minVersion": "0.7.8",
+    "package": "io.akarin.server.mixin",
+    "target": "@env(DEFAULT)",
+    "compatibilityLevel": "JAVA_8",
+    "server": [
+        "cps.MixinChunk",
+        
+        "lighting.MixinChunk",
+        "lighting.MixinWorld",
+        "lighting.MixinWorldServer",
+        "lighting.MixinChunkProviderServer",
+    ]
+}
\ No newline at end of file
diff --git a/sources/src/main/resources/mixins.akarin.optimization.pandawire.json b/sources/src/main/resources/mixins.akarin.optimization.pandawire.json
new file mode 100644
index 000000000..e1e1415ae
--- /dev/null
+++ b/sources/src/main/resources/mixins.akarin.optimization.pandawire.json
@@ -0,0 +1,10 @@
+{
+    "required": true,
+    "minVersion": "0.7.8",
+    "package": "io.akarin.server.mixin",
+    "target": "@env(DEFAULT)",
+    "compatibilityLevel": "JAVA_8",
+    "server": [
+		"optimization.PandaRedstoneWire",
+    ]
+}
\ No newline at end of file
diff --git a/sources/src/main/resources/mixins.akarin.optimization.realtime.json b/sources/src/main/resources/mixins.akarin.optimization.realtime.json
new file mode 100644
index 000000000..c8458ae9a
--- /dev/null
+++ b/sources/src/main/resources/mixins.akarin.optimization.realtime.json
@@ -0,0 +1,24 @@
+{
+    "required": true,
+    "minVersion": "0.7.8",
+    "package": "io.akarin.server.mixin",
+    "target": "@env(DEFAULT)",
+    "compatibilityLevel": "JAVA_8",
+    "server": [
+        "realtime.MixinWorld",
+        "realtime.MixinEntity",
+        "realtime.MixinEntityItem",
+        "realtime.MixinWorldServer",
+        "realtime.MixinEntityHuman",
+        "realtime.MixinEntityPlayer",
+        "realtime.MixinEntityAgeable",
+        "realtime.MixinMinecraftServer",
+        "realtime.MixinEntityInsentient",
+        "realtime.MixinPlayerConnection",
+        "realtime.MixinTileEntityFurnace",
+        "realtime.MixinEntityExperienceOrb",
+        "realtime.MixinEntityZombieVillager",
+        "realtime.MixinPlayerInteractManager",
+        "realtime.MixinTileEntityBrewingStand",
+    ]
+}
\ No newline at end of file