diff --git a/index.html b/index.html
index 44a507d..d40524d 100644
--- a/index.html
+++ b/index.html
@@ -7,6 +7,6 @@
 	</head>
 	<body>
 		<div id="root"></div>
-		<script type="module" src="/cosmos/main.tsx"></script>
+		<script type="module" src="/src/main.tsx"></script>
 	</body>
 </html>
diff --git a/src/components/WorkspaceCodeEditor.tsx b/src/components/WorkspaceCodeEditor.tsx
index 1dbfc10..8812d77 100644
--- a/src/components/WorkspaceCodeEditor.tsx
+++ b/src/components/WorkspaceCodeEditor.tsx
@@ -280,8 +280,8 @@ export function WorkspaceCodeEditor({
       style={{ height }}
     >
       {showSidebar && (
-        <div className="w-[200px] shrink-0 overflow-y-auto border-r border-slate-200 bg-slate-50 text-[13px] font-sans">
-          <div className="flex items-center justify-between px-2.5 py-2 text-[11px] font-semibold uppercase tracking-[0.05em] text-slate-500">
+        <div className="w-50 shrink-0 overflow-y-auto border-r border-slate-200 bg-slate-50 text-[13px] font-sans">
+          <div className="flex items-center justify-between px-2.5 py-2 text-[11px] font-semibold uppercase tracking-wider text-slate-500">
             <span>Files</span>
             {handleCreateFile && (
               <button
diff --git a/cosmos/main.tsx b/src/main.tsx
similarity index 100%
rename from cosmos/main.tsx
rename to src/main.tsx
diff --git a/tsconfig.json b/tsconfig.json
index 16d5686..5df833f 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -28,5 +28,5 @@
     "noUnusedParameters": false,
     "noPropertyAccessFromIndexSignature": false
   },
-  "include": ["src", "examples", "cosmos", "vite.config.ts"]
+  "include": ["src", "examples", "vite.config.ts"]
 }
