diff --git a/visions/server/src/asset_db.rs b/visions/server/src/asset_db.rs
index c88a4a0..00a783c 100644
--- a/visions/server/src/asset_db.rs
+++ b/visions/server/src/asset_db.rs
@@ -1,5 +1,5 @@
 use std::{
-    collections::HashMap,
+    collections::{hash_map::Iter, HashMap},
     fmt::{self, Display},
 };
 
@@ -16,7 +16,7 @@ pub struct AssetId(String);
 
 impl Display for AssetId {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "AssetId({}", self.0)
+        write!(f, "AssetId({})", self.0)
     }
 }
 
@@ -26,8 +26,24 @@ impl From<&str> for AssetId {
     }
 }
 
+impl From<String> for AssetId {
+    fn from(s: String) -> Self {
+        AssetId(s)
+    }
+}
+
+pub struct AssetIter<'a>(Iter<'a, AssetId, String>);
+
+impl <'a> Iterator for AssetIter<'a> {
+    type Item = (&'a AssetId, &'a String);
+
+    fn next(&mut self) -> Option<Self::Item> {
+        self.0.next()
+    }
+}
+
 pub trait Assets {
-    fn assets(&self) -> Vec<AssetId>;
+    fn assets<'a>(&'a self) -> AssetIter<'a>;
 
     fn get(&self, asset_id: AssetId) -> Result<Vec<u8>, Error>;
 }
@@ -49,8 +65,8 @@ impl FsAssets {
 }
 
 impl Assets for FsAssets {
-    fn assets(&self) -> Vec<AssetId> {
-        self.assets.keys().cloned().collect()
+    fn assets<'a>(&'a self) -> AssetIter<'a> {
+        AssetIter(self.assets.iter())
     }
 
     fn get(&self, asset_id: AssetId) -> Result<Vec<u8>, Error> {
@@ -79,8 +95,8 @@ pub mod mocks {
     }
 
     impl Assets for MemoryAssets {
-        fn assets(&self) -> Vec<AssetId> {
-            self.assets.keys().cloned().collect()
+        fn assets<'a>(&'a self) -> AssetIter<'a> {
+            AssetIter(self.assets.iter())
         }
 
         fn get(&self, asset_id: AssetId) -> Result<Vec<u8>, Error> {
diff --git a/visions/server/src/core.rs b/visions/server/src/core.rs
index 95f93ef..f1be756 100644
--- a/visions/server/src/core.rs
+++ b/visions/server/src/core.rs
@@ -20,7 +20,7 @@ struct WebsocketClient {
 }
 
 pub struct AppState {
-    pub assets: Box<dyn Assets + Sync + Send + 'static>,
+    pub asset_db: Box<dyn Assets + Sync + Send + 'static>,
     pub clients: HashMap<String, WebsocketClient>,
 
     pub tabletop: Tabletop,
@@ -35,7 +35,7 @@ impl Core {
         A: Assets + Sync + Send + 'static,
     {
         Self(Arc::new(RwLock::new(AppState {
-            assets: Box::new(assetdb),
+            asset_db: Box::new(assetdb),
             clients: HashMap::new(),
             tabletop: Tabletop {
                 background_color: RGB {
@@ -98,26 +98,19 @@ impl Core {
     }
 
     pub fn available_images(&self) -> Vec<AssetId> {
-        self.0.read().unwrap().assets.assets()
-        /*
-        Ok(std::fs::read_dir(&self.0.read().unwrap().image_base)
+        self.0
+            .read()
             .unwrap()
-            .filter_map(|entry| match entry {
-                Ok(entry_) => match mime_guess::from_path(entry_.path()).first() {
-                    Some(mime) if mime.type_() == mime::IMAGE => Some(
-                        entry_
-                            .path()
-                            .file_name()
-                            .and_then(|filename| filename.to_str())
-                            .and_then(|filename| Some(filename.to_owned()))
-                            .unwrap(),
-                    ),
+            .asset_db
+            .assets()
+            .filter_map(|(asset_id, value)| {
+                println!("[{:?}] {}", mime_guess::from_path(&value).first(), value);
+                match mime_guess::from_path(&value).first() {
+                    Some(mime) if mime.type_() == mime::IMAGE => Some(asset_id.clone()),
                     _ => None,
-                },
-                Err(_) => None,
+                }
             })
-            .collect())
-            */
+            .collect()
     }
 
     pub fn set_background_image(&self, path: String) -> Result<(), AppError> {
@@ -149,8 +142,8 @@ mod test {
     #[tokio::test]
     async fn it_lists_available_images() {
         let assets = MemoryAssets::new(vec![
-            (AssetId::from("asset_1"), "asset_1".to_owned()),
-            (AssetId::from("asset_2"), "asset_2".to_owned()),
+            (AssetId::from("asset_1"), "asset_1.png".to_owned()),
+            (AssetId::from("asset_2"), "asset_2.jpg".to_owned()),
             (AssetId::from("asset_3"), "asset_3".to_owned()),
             (AssetId::from("asset_4"), "asset_4".to_owned()),
             (AssetId::from("asset_5"), "asset_5".to_owned()),
@@ -158,6 +151,6 @@ mod test {
         let core = Core::new(assets);
 
         let image_paths = core.available_images();
-        assert_eq!(image_paths.len(), 5);
+        assert_eq!(image_paths.len(), 2);
     }
 }
diff --git a/visions/server/src/handlers.rs b/visions/server/src/handlers.rs
index de3ed83..0796768 100644
--- a/visions/server/src/handlers.rs
+++ b/visions/server/src/handlers.rs
@@ -1,8 +1,5 @@
-use std::{pin::Pin, time::Duration};
-
 use futures::{SinkExt, StreamExt};
 use serde::{Deserialize, Serialize};
-use tokio_stream::wrappers::UnboundedReceiverStream;
 use warp::{http::Response, reply::Reply, ws::Message};
 
 use crate::core::Core;
@@ -59,7 +56,7 @@ pub struct RegisterResponse {
     url: String,
 }
 
-pub async fn handle_register_client(core: Core, request: RegisterRequest) -> impl Reply {
+pub async fn handle_register_client(core: Core, _request: RegisterRequest) -> impl Reply {
     let client_id = core.register_client();
 
     Response::builder()