diff --git a/docs/source/_templates/sidebar-nav-bs-index.html b/docs/source/_templates/sidebar-nav-bs-index.html
new file mode 100644
index 000000000..d43999f30
--- /dev/null
+++ b/docs/source/_templates/sidebar-nav-bs-index.html
@@ -0,0 +1,24 @@
+<style>
+    #bd-docs-nav .toctree-toggle,
+    #bd-docs-nav .toctree-checkbox {
+      display: none;
+    }
+    #bd-docs-nav .toctree-l1 > a{
+      font-weight: bold;
+    }
+  </style>
+  
+  <nav class="bd-links" id="bd-docs-nav" aria-label="{{ _('Documentation Contents') }}">
+    <div class="bd-toc-item navbar-nav">
+      <!-- Specify a startdepth of 0 instead of default of 1 -->
+      {{ generate_toctree_html(
+        "sidebar",
+        startdepth=0,
+        show_nav_level=4,
+        maxdepth=4,
+        collapse=True,
+        includehidden=True,
+        titles_only=True
+      ) }}
+    </div>
+  </nav>
\ No newline at end of file
diff --git a/docs/source/conf.py b/docs/source/conf.py
index e5031726d..684577736 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -161,12 +161,37 @@
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-html_theme = 'sphinx_rtd_theme'
+html_theme = "pydata_sphinx_theme"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.
-#html_theme_options = {}
+html_theme_options = {
+    "icon_links": [
+        {
+            "name": "PyPI",
+            "url": "https://pypi.org/project/nbclassic",
+            "icon": "fa-solid fa-box",
+        }
+    ],
+    "use_edit_page_button": True,
+    "github_url": "https://github.com/jupyter/nbclassic",
+    "navbar_end": [
+        # disabled until widget dark variables are available
+        # "theme-switcher",
+        "navbar-icon-links",
+    ],
+    "secondary_sidebar_items": ["edit-this-page", "sourcelink", "search-field.html"]
+}
+
+html_context = {
+    # disabled until widget dark variables are available
+    "default_mode": "light",
+    "doc_path": "docs",
+    "github_repo": "nbclassic",
+    "github_user": "jupyter",
+    "github_version": "main",
+}
 
 # Add any paths that contain custom themes here, relative to this directory.
 #html_theme_path = []
@@ -209,7 +234,9 @@
 #html_use_smartypants = True
 
 # Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
+html_sidebars = {
+    "**": ["sidebar-nav-bs-index.html"]
+}
 
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
diff --git a/docs/source/frontend_config.rst b/docs/source/frontend_config.rst
index b0430ad42..b750e6487 100644
--- a/docs/source/frontend_config.rst
+++ b/docs/source/frontend_config.rst
@@ -1,7 +1,7 @@
 .. _frontend_config:
 
 Configuring the NbClassic frontend
-=================================
+==================================
 
 .. note::
 
diff --git a/docs/source/nbclassic.rst b/docs/source/nbclassic.rst
index da26c250f..bff852753 100644
--- a/docs/source/nbclassic.rst
+++ b/docs/source/nbclassic.rst
@@ -1,8 +1,12 @@
+:html_theme.sidebar_secondary.remove:
+
 .. _htmlnotebook:
 
 Jupyter NbClassic
 ====================
-
+.. toctree::
+   :maxdepth: 2
+   
 Introduction
 ------------
 
@@ -34,14 +38,14 @@ Installation
 ~~~~~~~~~~~~
 
 Installing from PyPI:
-``> pip install nbclassic``
+``pip install nbclassic``
 This will automatically enable the extension in Jupyter Server.
 
 Launch directly:
-``> jupyter nbclassic``
+``jupyter nbclassic``
 
 Alternatively, you can run Jupyter Server and visit the `/tree` endpoint:
-``> jupyter server``
+``jupyter server``
 
 Configuration
 ~~~~~~~~~~~~~
diff --git a/nbclassic/static/base/js/namespace.js b/nbclassic/static/base/js/namespace.js
index c570dd4fc..9f3deb03d 100644
--- a/nbclassic/static/base/js/namespace.js
+++ b/nbclassic/static/base/js/namespace.js
@@ -73,7 +73,7 @@ define(function(){
     // tree
     jglobal('SessionList','tree/js/sessionlist');
 
-    Jupyter.version = "1.0.0";
+    Jupyter.version = "1.1.0.dev0";
     Jupyter._target = '_blank';
 
     return Jupyter;