diff --git a/doc/source/conf.py b/doc/source/conf.py
index ff2ca2d94e9d8d2a91a3f8c54159d36e8b5e3190..8d54717fb336303cd2339e9c0bb7c7d8a2edc223 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -1,7 +1,3 @@
-# -*- coding: utf-8 -*-
-
-from __future__ import absolute_import
-
 # PyCUDA documentation build configuration file, created by
 # sphinx-quickstart on Fri Jun 13 00:51:19 2008.
 #
@@ -13,12 +9,12 @@ from __future__ import absolute_import
 # All configuration values have a default value; values that are commented out
 # serve to show the default value.
 
-#import sys, os
+# import sys, os
 
 # If your extensions are in another directory, add it here. If the directory
 # is relative to the documentation root, use os.path.abspath to make it
 # absolute, like shown here.
-#sys.path.append(os.path.abspath('some/directory'))
+# sys.path.append(os.path.abspath('some/directory'))
 
 # General configuration
 # ---------------------
@@ -26,167 +22,160 @@ from __future__ import absolute_import
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
 extensions = [
-    'sphinx.ext.intersphinx',
-    'sphinx.ext.mathjax',
-    ]
+    "sphinx.ext.intersphinx",
+    "sphinx.ext.mathjax",
+    "sphinx_copybutton",
+]
 
 # Add any paths that contain templates here, relative to this directory.
-templates_path = ['_templates']
+templates_path = ["_templates"]
 
 # The suffix of source filenames.
-source_suffix = '.rst'
+source_suffix = ".rst"
 
 # The master toctree document.
-master_doc = 'index'
+master_doc = "index"
 
 # General substitutions.
-project = 'PyCUDA'
-copyright = '2008, Andreas Kloeckner'
+project = "PyCUDA"
+copyright = "2008, Andreas Kloeckner"
 
 # The default replacements for |version| and |release|, also used in various
 # other places throughout the built documents.
 #
 # The short X.Y version.
 ver_dic = {}
-exec(compile(open("../../pycuda/__init__.py").read(), "../../pycuda/__init__.py", 'exec'), ver_dic)
+exec(
+    compile(
+        open("../../pycuda/__init__.py").read(), "../../pycuda/__init__.py", "exec"
+    ),
+    ver_dic,
+)
 version = ".".join(str(x) for x in ver_dic["VERSION"])
 # The full version, including alpha/beta/rc tags.
 release = ver_dic["VERSION_TEXT"]
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
-#today = ''
+# today = ''
 # Else, today_fmt is used as the format for a strftime call.
-today_fmt = '%B %d, %Y'
+today_fmt = "%B %d, %Y"
 
 # List of documents that shouldn't be included in the build.
-#unused_docs = []
+# unused_docs = []
 
 # List of directories, relative to source directories, that shouldn't be searched
 # for source files.
-#exclude_dirs = []
+# exclude_dirs = []
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
 
 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
 
 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
-#show_authors = False
+# show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = "sphinx"
 
 
 # Options for HTML output
 # -----------------------
 
-html_theme = "alabaster"
+html_theme = "furo"
 
 html_theme_options = {
-        "extra_nav_links": {
-            "🚀 Github": "https://github.com/inducer/pycuda",
-            "💾 Download Releases": "https://pypi.python.org/pypi/pycuda",
-            }
         }
 
-html_sidebars = {
-    '**': [
-        'about.html',
-        'navigation.html',
-        'relations.html',
-        'searchbox.html',
-    ]
-}
-
 # The style sheet to use for HTML and HTML Help pages. A file of that name
 # must exist either in Sphinx' static/ path, or in one of the custom paths
 # given in html_static_path.
-#html_style = 'default.css'
+# html_style = 'default.css'
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
-#html_title = None
+# html_title = None
 
 # The name of an image file (within the static path) to place at the top of
 # the sidebar.
-#html_logo = None
+# html_logo = None
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
-#html_static_path = ['_static']
+# html_static_path = ['_static']
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-html_last_updated_fmt = '%b %d, %Y'
+html_last_updated_fmt = "%b %d, %Y"
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-#html_use_smartypants = True
+# html_use_smartypants = True
 
 # Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
+# html_sidebars = {}
 
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
-#html_additional_pages = {}
+# html_additional_pages = {}
 
 # If false, no module index is generated.
-#html_use_modindex = True
+# html_use_modindex = True
 
 # If true, the reST sources are included in the HTML build as _sources/<name>.
-#html_copy_source = True
+# html_copy_source = True
 
 # If true, an OpenSearch description file will be output, and all pages will
 # contain a <link> tag referring to it.  The value of this option must be the
 # base URL from which the finished HTML is served.
-#html_use_opensearch = ''
+# html_use_opensearch = ''
 
 # If nonempty, this is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = ''
+# html_file_suffix = ''
 
 # Output file base name for HTML help builder.
-htmlhelp_basename = 'PyCudadoc'
+htmlhelp_basename = "PyCudadoc"
 
 
 # Options for LaTeX output
 # ------------------------
 
 # The paper size ('letter' or 'a4').
-#latex_paper_size = 'letter'
+# latex_paper_size = 'letter'
 
 # The font size ('10pt', '11pt' or '12pt').
-#latex_font_size = '10pt'
+# latex_font_size = '10pt'
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title, author, document class [howto/manual]).
 latex_documents = [
-  ('index', 'pycdua.tex', 'PyCUDA Documentation', 'Andreas Kloeckner', 'manual'),
+    ("index", "pycdua.tex", "PyCUDA Documentation", "Andreas Kloeckner", "manual"),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.
-#latex_logo = None
+# latex_logo = None
 
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
 
 # Additional stuff for the LaTeX preamble.
-#latex_preamble = ''
+# latex_preamble = ''
 
 # Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
 
 # If false, no module index is generated.
-#latex_use_modindex = True
+# latex_use_modindex = True
 
 intersphinx_mapping = {
-        'http://docs.python.org/dev': None,
-        'http://docs.scipy.org/doc/numpy/': None,
-        'https://documen.tician.de/codepy/': None,
-        }
+    "https://docs.python.org/3": None,
+    "https://numpy.org/doc/stable/": None,
+    "https://documen.tician.de/codepy/": None,
+}
diff --git a/doc/source/index.rst b/doc/source/index.rst
index 63f7db58283d7d70a22e40dc0c9a0f5c7e170363..e5c0c45c45da78af244a24c23d722c5d0aa07770 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -6,7 +6,7 @@ PyCUDA gives you easy, Pythonic access to `Nvidia <http://nvidia.com>`_'s `CUDA
 CUDA API already exist--so why the need for PyCUDA?
 
 * Object cleanup tied to lifetime of objects. This idiom,
-  often called 
+  often called
   `RAII <http://en.wikipedia.org/wiki/Resource_Acquisition_Is_Initialization>`_
   in C++, makes it much easier to write correct, leak- and
   crash-free code. PyCUDA knows about dependencies, too, so (for example)
@@ -18,7 +18,7 @@ CUDA API already exist--so why the need for PyCUDA?
   than with Nvidia's C-based runtime.
 
 * Completeness. PyCUDA puts the full power of CUDA's driver API at your
-  disposal, if you wish. 
+  disposal, if you wish.
 
 * Automatic Error Checking. All CUDA errors are automatically translated
   into Python exceptions.
@@ -61,8 +61,8 @@ source distribution.)
 On the surface, this program will print a screenful of zeros. Behind
 the scenes, a lot more interesting stuff is going on:
 
-* PyCUDA has compiled the CUDA source code and uploaded it to the card. 
-  
+* PyCUDA has compiled the CUDA source code and uploaded it to the card.
+
   .. note:: This code doesn't have to be a constant--you can easily have Python
     generate the code you want to compile. See :ref:`metaprog`.
 
@@ -93,6 +93,8 @@ Contents
     array
     metaprog
     misc
+    🚀 Github <https://github.com/inducer/pycuda>
+    💾 Download Releases <https://pypi.python.org/pypi/pycuda>
 
 Note that this guide will not explain CUDA programming and technology.  Please
 refer to Nvidia's `programming documentation