diff --git a/src/static/local-workspace.js b/src/static/local-workspace.js
index 2daa288..7179a3a 100644
--- a/src/static/local-workspace.js
+++ b/src/static/local-workspace.js
@@ -91,7 +91,7 @@ function isLibPath(path) {
 function isWritablePath(path) {
   if (!path) return false;
   const root = path.split('/')[0];
-  return root === 'code';
+  return root === 'code' || root === 'demos';
 }
 
 function splitParts(path) {
@@ -367,6 +367,7 @@ class FileSystemBackend {
   }
 
   async ensureSeed() {
+    await this._resolveDir(['demos'], true);
     const codeDir = await this._resolveDir(['code'], true);
     let mainExists = false;
     for await (const [name] of codeDir.entries()) {
@@ -543,20 +544,22 @@ class FileSystemBackend {
 
   async listAllPyFiles() {
     const out = {};
-    let codeDir;
-    try {
-      codeDir = await this._resolveDir(['code']);
-    } catch (_e) {
-      return out;
-    }
-    const collected = [];
-    await this._readAllRecursive(['code'], codeDir, collected);
-    for (const { path, handle } of collected) {
-      if (!path.toLowerCase().endsWith('.py')) continue;
+    for (const rootSeg of ['code', 'demos']) {
+      let dir;
       try {
-        out[path] = await (await handle.getFile()).text();
+        dir = await this._resolveDir([rootSeg]);
       } catch (_e) {
-        // Skip unreadable files.
+        continue;
+      }
+      const collected = [];
+      await this._readAllRecursive([rootSeg], dir, collected);
+      for (const { path, handle } of collected) {
+        if (!path.toLowerCase().endsWith('.py')) continue;
+        try {
+          out[path] = await (await handle.getFile()).text();
+        } catch (_e) {
+          // Skip unreadable files.
+        }
       }
     }
     return out;
@@ -564,19 +567,21 @@ class FileSystemBackend {
 
   async listAllUserFiles() {
     const out = {};
-    let codeDir;
-    try {
-      codeDir = await this._resolveDir(['code']);
-    } catch (_e) {
-      return out;
-    }
-    const collected = [];
-    await this._readAllRecursive(['code'], codeDir, collected);
-    for (const { path, handle } of collected) {
+    for (const rootSeg of ['code', 'demos']) {
+      let dir;
       try {
-        out[path] = await (await handle.getFile()).text();
+        dir = await this._resolveDir([rootSeg]);
       } catch (_e) {
-        // Skip unreadable files (e.g. binaries the editor can't open).
+        continue;
+      }
+      const collected = [];
+      await this._readAllRecursive([rootSeg], dir, collected);
+      for (const { path, handle } of collected) {
+        try {
+          out[path] = await (await handle.getFile()).text();
+        } catch (_e) {
+          // Skip unreadable files (e.g. binaries the editor can't open).
+        }
       }
     }
     return out;
@@ -700,7 +705,7 @@ export class LocalWorkspaceClient {
   /* --- Lib bundle ------------------------------------------------- */
 
   async _tryLoadStaticBundledLib() {
-    const names = ['machine.py', 'neopixel.py'];
+    const names = ['machine.py', 'neopixel.py', 'browser_fetch.py'];
     const map = {};
     for (const name of names) {
       const r = await fetch(`/static/bundled-lib/${encodeURIComponent(name)}`, {
@@ -770,6 +775,9 @@ export class LocalWorkspaceClient {
       if (!filtered.some((row) => row.name === 'code')) {
         filtered.push({ name: 'code', is_directory: true, size: null });
       }
+      if (!filtered.some((row) => row.name === 'demos')) {
+        filtered.push({ name: 'demos', is_directory: true, size: null });
+      }
       if (this.libFiles && Object.keys(this.libFiles).length) {
         filtered.push({ name: 'lib', is_directory: true, size: null });
       }
@@ -810,7 +818,7 @@ export class LocalWorkspaceClient {
     const path = normalizePath(rawPath);
     if (!path) return jsonResponse(400, { detail: 'Empty path' });
     if (isLibPath(path)) return jsonResponse(403, { detail: 'lib is read-only' });
-    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ is writable (lib is read-only)' });
+    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ and demos/ are writable (lib is read-only)' });
     const content = body && typeof body.content === 'string' ? body.content : '';
     await this.backend.writeFile(path, content);
     return jsonResponse(200, { filename: basename(path) });
@@ -821,7 +829,7 @@ export class LocalWorkspaceClient {
     const path = normalizePath(rawPath);
     if (!path) return jsonResponse(400, { detail: 'Empty path' });
     if (isLibPath(path)) return jsonResponse(403, { detail: 'lib is read-only' });
-    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ is writable' });
+    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ and demos/ are writable' });
     const r = await this.backend.deleteFile(path);
     if (!r.ok) {
       if (r.reason === 'missing') return jsonResponse(404, { detail: 'File not found' });
@@ -836,7 +844,7 @@ export class LocalWorkspaceClient {
     const path = normalizePath(rawPath);
     if (!path) return jsonResponse(400, { detail: 'Empty path' });
     if (isLibPath(path)) return jsonResponse(403, { detail: 'lib is read-only' });
-    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ is writable' });
+    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ and demos/ are writable' });
     const r = await this.backend.createFolder(path);
     if (!r.ok) {
       if (r.reason === 'exists') return jsonResponse(400, { detail: 'Folder already exists' });
@@ -850,7 +858,7 @@ export class LocalWorkspaceClient {
     const path = normalizePath(rawPath);
     if (!path) return jsonResponse(400, { detail: 'Empty path' });
     if (isLibPath(path)) return jsonResponse(403, { detail: 'lib is read-only' });
-    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ is writable' });
+    if (!isWritablePath(path)) return jsonResponse(403, { detail: 'Only code/ and demos/ are writable' });
     const r = await this.backend.deleteFolder(path);
     if (!r.ok) {
       if (r.reason === 'missing') return jsonResponse(404, { detail: 'Folder not found' });
@@ -867,7 +875,7 @@ export class LocalWorkspaceClient {
     if (!source) return jsonResponse(400, { detail: 'Missing source_path' });
     if (isLibPath(source) || isLibPath(dest)) return jsonResponse(403, { detail: 'lib is read-only' });
     if (!isWritablePath(source) || (dest && !isWritablePath(dest))) {
-      return jsonResponse(403, { detail: 'Only code/ is writable' });
+      return jsonResponse(403, { detail: 'Only code/ and demos/ are writable' });
     }
     const r = await this.backend.movePath(source, dest);
     if (!r.ok) {