diff --git a/handlers/event.py b/handlers/event.py
new file mode 100644
index 0000000..e901a2f
--- /dev/null
+++ b/handlers/event.py
@@ -0,0 +1,98 @@
+import discord
+from discord.ext import commands
+from loguru import logger
+
+from services.blacklist_service import BlacklistUserService
+from services.config_service import GuildConfig
+from ui.config import create_boost_embed, create_greet_embed
+
+
+class EventHandler(commands.Cog):
+    def __init__(self, bot: commands.Bot):
+        self.bot = bot
+
+    @commands.Cog.listener()
+    async def on_member_join(self, member: discord.Member):
+        if BlacklistUserService.is_user_blacklisted(member.id):
+            return
+
+        config = GuildConfig(member.guild.id)
+
+        if not config.welcome_channel_id:
+            return
+
+        embed = create_greet_embed(
+            user_name=member.name,
+            user_avatar_url=member.display_avatar.url,
+            guild_name=member.guild.name,
+            template=config.welcome_message,
+        )
+
+        try:
+            channel = member.guild.get_channel(config.welcome_channel_id)
+            if isinstance(channel, discord.TextChannel):
+                await channel.send(
+                    embed=embed,
+                    content=member.mention,
+                )
+        except Exception as e:
+            logger.warning(
+                f"Greet message not sent in '{member.guild.name}'. Channel ID may be invalid. {e}",
+            )
+
+    @commands.Cog.listener()
+    async def on_member_update(self, before: discord.Member, after: discord.Member):
+        if BlacklistUserService.is_user_blacklisted(after.id):
+            return
+
+        if before.premium_since is None and after.premium_since is not None:
+            await self.on_nitro_boost(after)
+
+    @staticmethod
+    async def on_nitro_boost(member: discord.Member):
+        config = GuildConfig(member.guild.id)
+
+        if not config.boost_channel_id:
+            return
+
+        embed = create_boost_embed(
+            user_name=member.name,
+            user_avatar_url=member.display_avatar.url,
+            boost_count=member.guild.premium_subscription_count,
+            template=config.boost_message,
+            image_url=config.boost_image_url,
+        )
+
+        try:
+            channel = member.guild.get_channel(config.boost_channel_id)
+            if isinstance(channel, discord.TextChannel):
+                await channel.send(
+                    embed=embed,
+                    content=member.mention,
+                )
+        except Exception as e:
+            logger.warning(
+                f"Boost message not sent in '{member.guild.name}'. Channel ID may be invalid. {e}",
+            )
+
+    @commands.Cog.listener()
+    async def on_command_completion(self, ctx: commands.Context[commands.Bot]) -> None:
+        log_msg = f"{ctx.author.name} executed .{ctx.command.qualified_name if ctx.command else 'Unknown'}"
+
+        if ctx.guild is not None:
+            logger.debug(f"{log_msg} | guild: {ctx.guild.name} ")
+        else:
+            logger.debug(f"{log_msg} in DMs")
+
+    @commands.Cog.listener()
+    async def on_application_command_completion(self, ctx: discord.Interaction) -> None:
+        log_msg = f"{ctx.user.name} executed /{ctx.command.qualified_name if ctx.command else 'Unknown'}"
+
+        if ctx.guild is not None:
+            logger.debug(f"{log_msg} | guild: {ctx.guild.name} ")
+        else:
+            logger.debug(f"{log_msg} in DMs")
+
+
+async def setup(bot: commands.Bot):
+    await bot.add_cog(EventHandler(bot))
diff --git a/modules/config/config.py b/modules/config/config.py
index 0967a88..4cdb2f5 100644
--- a/modules/config/config.py
+++ b/modules/config/config.py
@@ -279,7 +279,7 @@ class Config(commands.GroupCog, group_name="config"):
 
         await interaction.response.send_message(embed=embed)
 
-        example_embed = await create_boost_embed(
+        example_embed = create_boost_embed(
             user_name=interaction.user.name,
             user_avatar_url=interaction.user.display_avatar.url,
             boost_count=interaction.guild.premium_subscription_count,
@@ -330,7 +330,7 @@ class Config(commands.GroupCog, group_name="config"):
 
         await interaction.response.send_message(embed=embed)
 
-        example_embed = await create_boost_embed(
+        example_embed = create_boost_embed(
             user_name=interaction.user.name,
             user_avatar_url=interaction.user.display_avatar.url,
             boost_count=interaction.guild.premium_subscription_count,
diff --git a/ui/config.py b/ui/config.py
index 9e6f57f..f0ec732 100644
--- a/ui/config.py
+++ b/ui/config.py
@@ -4,7 +4,7 @@ import lib.format
 from lib.const import CONST
 
 
-async def create_boost_embed(
+def create_boost_embed(
     user_name: str,
     user_avatar_url: str,
     boost_count: int,