diff --git a/README.md b/README.md
index 2b58179..5a61ea8 100644
--- a/README.md
+++ b/README.md
@@ -2,14 +2,14 @@
 This plugin adds the support for [Velocity](https://velocitypowered.com/) to [AuthMeReloaded](https://github.com/AuthMe/AuthMeReloaded)
 
 ## Requirements
-- Paper, Airplane or Purpur 1.13+
+- Paper, Pufferfish or Purpur 1.13+
 - Velocity 3.1.2+
 - Java 17+
 
 ## Setup
 1. Download the latest release of the plugin [link](https://github.com/4drian3d/AuthMeVelocity/releases)
 2. Put the plugin in the Velocity plugins folder and on all your Auth servers that have AuthMe installed.
-4. Start the Velocity proxy and set up the config.conf with the auth servers.
+3. Start the Velocity proxy and set up the config.conf with the auth servers.
 
 ## Plugin API
 Check the plugin API [here](https://github.com/4drian3d/AuthMeVelocity/wiki/Plugin-API)
diff --git a/api/paper/src/main/java/me/adrianed/authmevelocity/api/paper/event/PreSendLoginEvent.java b/api/paper/src/main/java/me/adrianed/authmevelocity/api/paper/event/PreSendLoginEvent.java
index ba8bfff..9651be9 100644
--- a/api/paper/src/main/java/me/adrianed/authmevelocity/api/paper/event/PreSendLoginEvent.java
+++ b/api/paper/src/main/java/me/adrianed/authmevelocity/api/paper/event/PreSendLoginEvent.java
@@ -42,7 +42,7 @@ public final class PreSendLoginEvent extends PlayerEvent implements Cancellable
      * Obtain the handlerlist of this event
      * @return the handlerlist
      */
-    public static HandlerList getHandlerList() {
+    public static @NotNull HandlerList getHandlerList() {
         return HANDLERS;
     }
 }
diff --git a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/AuthMeVelocityAPI.java b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/AuthMeVelocityAPI.java
index 5c0bb10..f049a4c 100644
--- a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/AuthMeVelocityAPI.java
+++ b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/AuthMeVelocityAPI.java
@@ -30,14 +30,14 @@ public interface AuthMeVelocityAPI {
     /**
      * Adds a player to the list of logged in players
      * @param player the new logged player
-     * @return if the player was succesfully added
+     * @return if the player was successfully added
      */
     boolean addPlayer(@NotNull Player player);
 
     /**
      * Removes a player from the list of logged-in players
      * @param player the unlogged player
-     * @return if the player was succesfully removed
+     * @return if the player was successfully removed
      */
     boolean removePlayer(@NotNull Player player);
 
@@ -69,9 +69,9 @@ public interface AuthMeVelocityAPI {
     boolean isAuthServer(@NotNull ServerConnection connection);
 
     /**
-     * Checks if a string is an name of an auth server
+     * Checks if a string is a name of an auth server
      * @param server the server name
-     * @return if the server is an auth serverr
+     * @return if the server is an auth server
      */
     boolean isAuthServer(@NotNull String server);
 }
diff --git a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ProxyUnregisterEvent.java b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ProxyUnregisterEvent.java
index acbdab0..164ee8a 100644
--- a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ProxyUnregisterEvent.java
+++ b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ProxyUnregisterEvent.java
@@ -4,5 +4,5 @@ import com.velocitypowered.api.proxy.Player;
 
 import org.jetbrains.annotations.NotNull;
 
-/**Event executed in case the player has unregister itself*/
+/**Event executed in case the player has unregistered itself*/
 public record ProxyUnregisterEvent(@NotNull Player player) {}
diff --git a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ServerResult.java b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ServerResult.java
index c69f2d2..b9abf50 100644
--- a/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ServerResult.java
+++ b/api/velocity/src/main/java/me/adrianed/authmevelocity/api/velocity/event/ServerResult.java
@@ -30,7 +30,7 @@ public final class ServerResult implements Result {
      * @param server the resulted server
      * @return A ServerResult with allowed result and custom server result
      */
-    public static final ServerResult allowed(RegisteredServer server) {
+    public static ServerResult allowed(RegisteredServer server) {
         return new ServerResult(server);
     }
 
@@ -39,7 +39,7 @@ public final class ServerResult implements Result {
      * 
      * @return A ServerResult with denied result and null server
      */
-    public static final ServerResult denied() {
+    public static ServerResult denied() {
         return DENIED;
     }
     
diff --git a/build.gradle.kts b/build.gradle.kts
index 4a63c67..117990c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,5 +1,3 @@
-import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
-
 plugins {
     java
     id("com.github.johnrengelman.shadow") version "7.1.2"
diff --git a/common/build.gradle.kts b/common/build.gradle.kts
index 8d3c912..bd15c2a 100644
--- a/common/build.gradle.kts
+++ b/common/build.gradle.kts
@@ -10,9 +10,9 @@ repositories {
 
 dependencies {
     compileOnly("org.spongepowered:configurate-hocon:4.1.2")
-    compileOnly("org.slf4j:slf4j-api:2.0.4")
+    compileOnly("org.slf4j:slf4j-api:2.0.5")
     compileOnly("net.byteflux:libby-core:1.1.5")
-    compileOnly("net.kyori:adventure-api:4.11.0")
+    compileOnly("net.kyori:adventure-api:4.12.0")
 }
 
 tasks {
diff --git a/common/src/main/java/me/adrianed/authmevelocity/common/configuration/ConfigurationContainer.java b/common/src/main/java/me/adrianed/authmevelocity/common/configuration/ConfigurationContainer.java
index 5315f53..f9766cb 100644
--- a/common/src/main/java/me/adrianed/authmevelocity/common/configuration/ConfigurationContainer.java
+++ b/common/src/main/java/me/adrianed/authmevelocity/common/configuration/ConfigurationContainer.java
@@ -1,7 +1,6 @@
 package me.adrianed.authmevelocity.common.configuration;
 
 import java.util.concurrent.CompletableFuture;
-import java.util.function.Consumer;
 
 import org.slf4j.Logger;
 import org.spongepowered.configurate.CommentedConfigurationNode;
@@ -30,16 +29,11 @@ public class ConfigurationContainer<C> {
         return this.safeReload();
     }
 
-    public void setValues(Consumer<C> consumer) {
-        consumer.accept(this.config);
-        this.safeReload();
-    }
-
     public C get() {
         return this.config;
     }
 
-    private final CompletableFuture<Boolean> safeReload() {
+    private CompletableFuture<Boolean> safeReload() {
         return CompletableFuture.supplyAsync(() -> {
             C newConfig = null;
             try {
diff --git a/common/src/main/java/me/adrianed/authmevelocity/common/enums/SendMode.java b/common/src/main/java/me/adrianed/authmevelocity/common/enums/SendMode.java
index ee77c16..541510c 100644
--- a/common/src/main/java/me/adrianed/authmevelocity/common/enums/SendMode.java
+++ b/common/src/main/java/me/adrianed/authmevelocity/common/enums/SendMode.java
@@ -3,5 +3,5 @@ package me.adrianed.authmevelocity.common.enums;
 public enum SendMode {
     TO_FIRST,
     TO_EMPTIEST_SERVER,
-    RANDOM;
+    RANDOM
 }
diff --git a/paper/src/main/java/me/adrianed/authmevelocity/paper/listeners/MessageListener.java b/paper/src/main/java/me/adrianed/authmevelocity/paper/listeners/MessageListener.java
index faef963..e3cb38a 100644
--- a/paper/src/main/java/me/adrianed/authmevelocity/paper/listeners/MessageListener.java
+++ b/paper/src/main/java/me/adrianed/authmevelocity/paper/listeners/MessageListener.java
@@ -20,7 +20,7 @@ public class MessageListener implements PluginMessageListener {
     }
 
     @Override
-    public void onPluginMessageReceived(@NotNull String identifier, @NotNull Player player, @NotNull byte[] bytes) {
+    public void onPluginMessageReceived(@NotNull String identifier, @NotNull Player player, byte @NotNull [] bytes) {
         if (!identifier.equals("authmevelocity")) {
             plugin.logDebug("PluginMessage | Not AuthMeVelocity identifier");
             return;
@@ -28,10 +28,11 @@ public class MessageListener implements PluginMessageListener {
 
         plugin.logDebug("PluginMessage | AuthMeVelocity identifier");
 
+        @SuppressWarnings("UnstableApiUsage")
         final ByteArrayDataInput input = ByteStreams.newDataInput(bytes);
-        final String subchannel = input.readUTF();
+        final String subChannel = input.readUTF();
 
-        if ("main".equals(subchannel)) {
+        if ("main".equals(subChannel)) {
             plugin.logDebug("PluginMessage | Main Subchannel");
             final String msg = input.readUTF();
             if ("LOGIN".equals(msg)) {
diff --git a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/AuthMeVelocityPlugin.java b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/AuthMeVelocityPlugin.java
index 9d56d6a..a9b98ad 100644
--- a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/AuthMeVelocityPlugin.java
+++ b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/AuthMeVelocityPlugin.java
@@ -28,6 +28,7 @@ import com.velocitypowered.api.proxy.messages.MinecraftChannelIdentifier;
 import net.byteflux.libby.VelocityLibraryManager;
 import net.kyori.adventure.text.minimessage.MiniMessage;
 
+import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.bstats.charts.SimplePie;
 import org.bstats.velocity.Metrics;
@@ -66,7 +67,7 @@ public final class AuthMeVelocityPlugin implements AuthMeVelocityAPI {
     private final Metrics.Factory metricsFactory;
     private ConfigurationContainer<ProxyConfiguration> config;
 
-    protected final Set<UUID> loggedPlayers = ConcurrentHashMap.newKeySet();
+    final Set<UUID> loggedPlayers = ConcurrentHashMap.newKeySet();
 
     @Inject
     public AuthMeVelocityPlugin(
@@ -123,7 +124,7 @@ public final class AuthMeVelocityPlugin implements AuthMeVelocityAPI {
         this.sendInfoMessage();
     }
 
-    protected ProxyServer getProxy(){
+    ProxyServer getProxy(){
         return this.proxy;
     }
 
@@ -144,47 +145,47 @@ public final class AuthMeVelocityPlugin implements AuthMeVelocityAPI {
     }
 
     @Override
-    public boolean isLogged(Player player){
+    public boolean isLogged(@NotNull Player player){
         return loggedPlayers.contains(player.getUniqueId());
     }
 
     @Override
-    public boolean isNotLogged(Player player){
+    public boolean isNotLogged(@NotNull Player player){
         return !loggedPlayers.contains(player.getUniqueId());
     }
 
     @Override
-    public boolean addPlayer(Player player){
+    public boolean addPlayer(@NotNull Player player){
         return loggedPlayers.add(player.getUniqueId());
     }
 
     @Override
-    public boolean removePlayer(Player player){
+    public boolean removePlayer(@NotNull Player player){
         return loggedPlayers.remove(player.getUniqueId());
     }
 
     @Override
-    public void removePlayerIf(Predicate<Player> predicate){
+    public void removePlayerIf(@NotNull Predicate<Player> predicate){
         loggedPlayers.removeIf(uuid -> predicate.test(getProxy().getPlayer(uuid).orElse(null)));
     }
 
     @Override
-    public boolean isInAuthServer(Player player){
+    public boolean isInAuthServer(@NotNull Player player){
         return player.getCurrentServer().map(this::isAuthServer).orElse(false);
     }
 
     @Override
-    public boolean isAuthServer(RegisteredServer server){
-        return config.get().authServers().contains(server.getServerInfo().getName());
+    public boolean isAuthServer(@NotNull RegisteredServer server){
+        return isAuthServer(server.getServerInfo().getName());
     }
 
     @Override
-    public boolean isAuthServer(ServerConnection connection){
-        return config.get().authServers().contains(connection.getServerInfo().getName());
+    public boolean isAuthServer(@NotNull ServerConnection connection){
+        return isAuthServer(connection.getServerInfo().getName());
     }
 
     @Override
-    public boolean isAuthServer(String server){
+    public boolean isAuthServer(@NotNull String server){
         return config.get().authServers().contains(server);
     }
 
diff --git a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ConnectListener.java b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ConnectListener.java
index 6eef772..9567813 100644
--- a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ConnectListener.java
+++ b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ConnectListener.java
@@ -19,11 +19,11 @@ import com.velocitypowered.api.proxy.server.RegisteredServer;
 import me.adrianed.authmevelocity.velocity.AuthMeVelocityPlugin;
 import me.adrianed.authmevelocity.velocity.utils.AuthmeUtils;
 
-public class ConnectListener {
+public final class ConnectListener {
     private final ProxyServer proxy;
     private final Logger logger;
     private final AuthMeVelocityPlugin plugin;
-    
+
     public ConnectListener(AuthMeVelocityPlugin plugin, ProxyServer proxy, Logger logger) {
         this.plugin = plugin;
         this.logger = logger;
@@ -32,14 +32,14 @@ public class ConnectListener {
 
     @Subscribe(order = PostOrder.LATE)
     public void onInitialServer(PlayerChooseInitialServerEvent event, Continuation continuation){
-        if(!plugin.config().get().ensureAuthServer().ensureFirstServerIsAuthServer()) {
+        if (!plugin.config().get().ensureAuthServer().ensureFirstServerIsAuthServer()) {
             continuation.resume();
             plugin.logDebug("PlayerChooseInitialServerEvent | Not enabled");
             return;
         }
 
         Optional<RegisteredServer> optionalSV = event.getInitialServer();
-        if(optionalSV.isPresent() && plugin.isAuthServer(optionalSV.get())){
+        if (optionalSV.isPresent() && plugin.isAuthServer(optionalSV.get())){
             continuation.resume();
             plugin.logDebug("PlayerChooseInitialServerEvent | Player is in auth server");
             return;
@@ -66,13 +66,14 @@ public class ConnectListener {
         }
 
         // this should be present, "event.getResult().isAllowed()" is the "isPresent" check
-        if(!plugin.isAuthServer(event.getResult().getServer().orElse(null))) {
+        if (!plugin.isAuthServer(event.getResult().getServer().orElseThrow())) {
             plugin.logDebug("ServerPreConnectEvent | Server is not an auth server");
             event.setResult(ServerPreConnectEvent.ServerResult.denied());
         }
         continuation.resume();
     }
 
+    @SuppressWarnings("UnstableApiUsage")
     @Subscribe
     public void onServerPostConnect(ServerPostConnectEvent event) {
         final Player player = event.getPlayer();
diff --git a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/PluginMessageListener.java b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/PluginMessageListener.java
index 6d43f23..f7c3618 100644
--- a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/PluginMessageListener.java
+++ b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/PluginMessageListener.java
@@ -53,7 +53,7 @@ public class PluginMessageListener {
 
         final ByteArrayDataInput input = event.dataAsDataStream();
         final String message = input.readUTF();
-        final MessageType type = MessageType.INDEX.value(
+        final MessageType type = MessageType.INDEX.valueOrThrow(
             message.toUpperCase(Locale.ROOT));
         final String name = input.readUTF();
         final @Nullable Player player = proxy.getPlayer(name).orElse(null);
diff --git a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ProxyListener.java b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ProxyListener.java
index 7242663..c04c1b4 100644
--- a/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ProxyListener.java
+++ b/velocity/src/main/java/me/adrianed/authmevelocity/velocity/listener/ProxyListener.java
@@ -46,7 +46,7 @@ public final class ProxyListener {
         }
 
         if (canBeIgnored(player)) {
-            plugin.logDebug("CommandexecuteEvent | Ignored signed player");
+            plugin.logDebug("CommandExecuteEvent | Ignored signed player");
             continuation.resume();
             return;
         }
@@ -101,7 +101,7 @@ public final class ProxyListener {
             }
         }
 
-        plugin.logDebug("TabCompleteEvent | Not allowed tabcompletion");
+        plugin.logDebug("TabCompleteEvent | Not allowed tab-completion");
         event.getSuggestions().clear();
     }