diff --git a/Cargo.lock b/Cargo.lock
index 37eeed6..31cc624 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1656,6 +1656,7 @@ dependencies = [
  "sea-orm",
  "serde",
  "serde_json",
+ "serde_repr",
  "socket2",
  "tokio",
  "toml",
@@ -2351,6 +2352,17 @@ dependencies = [
  "serde_core",
 ]
 
+[[package]]
+name = "serde_repr"
+version = "0.1.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "175ee3e80ae9982737ca543e96133087cbd9a485eecc3bc4de9c1a37b47ea59c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.110",
+]
+
 [[package]]
 name = "serde_spanned"
 version = "1.0.3"
diff --git a/Cargo.toml b/Cargo.toml
index 6939cec..4e3d929 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -62,6 +62,7 @@ chrono = "0.4"
 parking_lot = "0.12"
 serde = { version = "1.0", features = ["default", "derive"] }
 serde_json = { version = "1.0.145", features = ["default"]}
+serde_repr = "0.1"
 toml = "0.9"
 validator = { version = "0.20", features = ["derive"] }
 uuid = {version = "1", features = ["v4", "v7", "fast-rng", "serde"]}
diff --git a/frontend/src/components/category/category_detail.vue b/frontend/src/components/category/category_detail.vue
index f0ebde8..f6743f0 100644
--- a/frontend/src/components/category/category_detail.vue
+++ b/frontend/src/components/category/category_detail.vue
@@ -1,7 +1,7 @@
 <template>
   <div>
     <div>
-      <h3>category : {{category.name}} <button @click="remove">Remove</button></h3>
+      <h3>category : {{category.name}} ({{category.id}})<button @click="remove">Remove</button></h3>
     </div>
   <hr>
   </div>
diff --git a/frontend/src/components/channel/channel_detail.vue b/frontend/src/components/channel/channel_detail.vue
index 1405476..fcf9c53 100644
--- a/frontend/src/components/channel/channel_detail.vue
+++ b/frontend/src/components/channel/channel_detail.vue
@@ -2,7 +2,11 @@
   <div>
     <div>
       <h3>channel : {{channel.name}} <button @click="remove">Remove</button></h3>
-      <p>Type: {{ channel.channel_type }}</p>
+      <ul>
+        <li v-if="channel.server_id">Server: {{ channel.server_id }}</li>
+        <li v-if="channel.category_id">Category: {{ channel.category_id }}</li>
+        <li>Type: {{ channel.channel_type }}</li>
+      </ul>
     </div>
   <hr>
   </div>
diff --git a/frontend/src/components/server/server_detail.vue b/frontend/src/components/server/server_detail.vue
index 3c456d8..3dd5df3 100644
--- a/frontend/src/components/server/server_detail.vue
+++ b/frontend/src/components/server/server_detail.vue
@@ -1,7 +1,7 @@
 <template>
   <div>
     <div>
-      <h3>server : {{server.name}} <button @click="remove">Remove</button></h3>
+      <h3>server : {{server.name}} ({{server.id}}) <button @click="remove">Remove</button></h3>
 
     </div>
   <hr>
diff --git a/migration/src/m20220101_000001_create_table.rs b/migration/src/m20220101_000001_create_table.rs
index c8fb7db..e6e8715 100644
--- a/migration/src/m20220101_000001_create_table.rs
+++ b/migration/src/m20220101_000001_create_table.rs
@@ -63,6 +63,12 @@ impl MigrationTrait for Migration {
                         .string()
                         .not_null()
                 )
+                .col(
+                    ColumnDef::new(Alias::new("position"))
+                        .integer()
+                        .not_null()
+                        .default(0)
+                )
                 .col(
                     ColumnDef::new(Alias::new("created_at"))
                         .date_time()
diff --git a/src/models/category.rs b/src/models/category.rs
index e6eb87a..e5b5f7f 100644
--- a/src/models/category.rs
+++ b/src/models/category.rs
@@ -11,6 +11,7 @@ pub struct Model {
     pub id: Uuid,
     pub server_id: Uuid,
     pub name: String,
+    pub position: i32,
     pub created_at: DateTime,
     pub updated_at: DateTime,
 }
diff --git a/src/models/channel.rs b/src/models/channel.rs
index c1acff6..b4297c2 100644
--- a/src/models/channel.rs
+++ b/src/models/channel.rs
@@ -3,6 +3,19 @@
 use sea_orm::entity::prelude::*;
 use sea_orm::prelude::async_trait::async_trait;
 use sea_orm::Set;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Copy, PartialEq, Eq, EnumIter, DeriveActiveEnum, Serialize, Deserialize)]
+#[sea_orm(rs_type = "i32", db_type = "Integer")]
+#[serde(rename_all = "snake_case")]
+pub enum ChannelType {
+    #[sea_orm(num_value = 0)]
+    Text,
+    #[sea_orm(num_value = 1)]
+    Voice,
+    #[sea_orm(num_value = 3)]
+    DM,
+}
 
 #[derive(Clone, Debug, PartialEq, DeriveEntityModel, Eq)]
 #[sea_orm(table_name = "channel")]
@@ -12,7 +25,7 @@ pub struct Model {
     pub server_id: Option<Uuid>,
     pub category_id: Option<Uuid>,
     pub position: i32,
-    pub channel_type: i32,
+    pub channel_type: ChannelType,
     pub name: Option<String>,
     pub created_at: DateTime,
     pub updated_at: DateTime,
diff --git a/src/repositories/server.rs b/src/repositories/server.rs
index cc480b2..23dcdab 100644
--- a/src/repositories/server.rs
+++ b/src/repositories/server.rs
@@ -1,6 +1,7 @@
 use std::sync::Arc;
-use sea_orm::{DbErr, EntityTrait, ActiveModelTrait};
-use crate::models::server;
+use sea_orm::{DbErr, EntityTrait, ActiveModelTrait, QueryFilter, ColumnTrait, QueryOrder};
+use uuid::Uuid;
+use crate::models::{category, channel, server};
 use crate::repositories::RepositoryContext;
 
 #[derive(Clone)]
@@ -34,4 +35,79 @@ impl ServerRepository {
         self.context.events.emit("server_deleted", id);
         Ok(res.rows_affected > 0)
     }
+}
+
+pub enum ServerExplorerItem {
+    Category(category::Model, Vec<channel::Model>),
+    Channel(channel::Model),
+}
+
+// Pour pouvoir trier facilement
+impl ServerExplorerItem {
+    fn position(&self) -> i32 {
+        match self {
+            ServerExplorerItem::Category(cat, _) => cat.position,
+            ServerExplorerItem::Channel(chan) => chan.position,
+        }
+    }
+}
+
+pub struct ServerLayout {
+    pub items: Vec<ServerExplorerItem>,
+}
+
+// Helpers
+impl ServerRepository {
+    pub async fn get_channels_tree(&self, server_id: Uuid) -> Result<ServerLayout, DbErr> {
+        // 1. Récupération des catégories avec leurs channels
+        let categories_with_channels = category::Entity::find()
+            .filter(category::Column::ServerId.eq(server_id))
+            .find_with_related(channel::Entity)
+            .all(&self.context.db)
+            .await?;
+
+        // 2. Récupération des channels orphelins (sans catégorie)
+        let orphan_channels = channel::Entity::find()
+            .filter(channel::Column::ServerId.eq(server_id))
+            .filter(channel::Column::CategoryId.is_null())
+            .all(&self.context.db)
+            .await?;
+
+        // 3. Transformation et tri des enfants
+        let mut items: Vec<ServerExplorerItem> = Vec::new();
+
+        for (cat, mut channels) in categories_with_channels {
+            // On trie les channels internes (obligatoire car SQL ne garantit aucun ordre ici)
+            channels.sort_by(|a, b| {
+                a.position.cmp(&b.position).then(a.created_at.cmp(&b.created_at))
+            });
+            items.push(ServerExplorerItem::Category(cat, channels));
+        }
+
+        for chan in orphan_channels {
+            items.push(ServerExplorerItem::Channel(chan));
+        }
+
+        // 4. Tri final de la liste globale (Mélange catégories et orphelins)
+        items.sort_by(|a, b| {
+            let pos_cmp = a.position().cmp(&b.position());
+
+            if pos_cmp == std::cmp::Ordering::Equal {
+                // Départage par date si position identique
+                let date_a = match a {
+                    ServerExplorerItem::Category(c, _) => c.created_at,
+                    ServerExplorerItem::Channel(c) => c.created_at,
+                };
+                let date_b = match b {
+                    ServerExplorerItem::Category(c, _) => c.created_at,
+                    ServerExplorerItem::Channel(c) => c.created_at,
+                };
+                date_a.cmp(&date_b)
+            } else {
+                pos_cmp
+            }
+        });
+
+        Ok(ServerLayout { items })
+    }
 }
\ No newline at end of file
diff --git a/src/serializers/channel.rs b/src/serializers/channel.rs
index 8299713..59a4cd1 100644
--- a/src/serializers/channel.rs
+++ b/src/serializers/channel.rs
@@ -2,6 +2,7 @@ use serde::{Serialize, Deserialize};
 use sea_orm::ActiveValue::Set;
 use uuid::Uuid;
 use crate::models::channel;
+use crate::models::channel::ChannelType;
 
 #[derive(Serialize, Deserialize)]
 pub struct ChannelSerializer {
@@ -11,7 +12,7 @@ pub struct ChannelSerializer {
     pub category_id: Option<Uuid>,
     pub name: Option<String>,
     pub position: Option<i32>,
-    pub channel_type: i32,
+    pub channel_type: ChannelType,
 
     #[serde(skip_deserializing)]
     pub created_at: Option<String>,