diff --git a/docs/conf.py b/docs/conf.py
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+++ b/docs/conf.py
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+# Configuration file for the Sphinx documentation builder.
+#
+# This file only contains a selection of the most common options. For a full
+# list see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+
+# -- Path setup --------------------------------------------------------------
+
+# If extensions (or modules to document with autodoc) are in another directory,
+# add these directories to sys.path here. If the directory is relative to the
+# documentation root, use os.path.abspath to make it absolute, like shown here.
+#
+import os
+import sys
+import subprocess
+
+# sys.path.insert(0, os.path.abspath('.'))
+
+
+# -- Project information -----------------------------------------------------
+
+project = 'block2'
+copyright = '2020-2024, Huanchen Zhai'
+author = 'Huanchen Zhai'
+
+
+# -- General configuration ---------------------------------------------------
+
+# Add any Sphinx extension module names here, as strings. They can be
+# extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
+# ones.
+extensions = [
+    "breathe",
+    "nbsphinx",
+    'sphinx.ext.autodoc',
+    'sphinx.ext.mathjax',
+    'sphinx_rtd_theme',
+]
+
+breathe_projects = {"block2": "../build/doxygenxml/"}
+breathe_default_project = "block2"
+breathe_domain_by_extension = {"hpp": "cpp"}
+
+# Add any paths that contain templates here, relative to this directory.
+templates_path = ['_templates']
+
+# List of patterns, relative to source directory, that match files and
+# directories to ignore when looking for source files.
+# This pattern also affects html_static_path and html_extra_path.
+exclude_patterns = []
+
+
+# -- Options for HTML output -------------------------------------------------
+
+# The theme to use for HTML and HTML Help pages.  See the documentation for
+# a list of builtin themes.
+#
+html_theme = 'sphinx_rtd_theme'
+
+# 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_theme_options = { 'logo_only': True, }
+html_logo = '_static/block2-logo-white.png'
+
+primary_domain = "cpp"
+highlight_language = "cpp"
+
+latex_elements = {
+    'papersize': 'letterpaper',
+    'pointsize': '11pt',
+    'preamble': r'''
+        \usepackage{charter}
+        \usepackage[defaultsans]{lato}
+        \usepackage{inconsolata}
+    '''
+}
+
+sys.path[:0] = [os.path.abspath('../..')]
+
+autodoc_default_options = {
+    'member-order': 'bysource',
+    'special-members': '__init__'
+}
+
+def generate_doxygen_xml(app):
+    build_dir = os.path.join(app.confdir, "build")
+    if not os.path.exists(build_dir):
+        os.mkdir(build_dir)
+
+    try:
+        subprocess.call(["doxygen --version"], shell=True)
+        retcode = subprocess.call(["mkdir ../build"], cwd=app.confdir, shell=True)
+        retcode = subprocess.call(["doxygen ../Doxygen"], cwd=app.confdir, shell=True)
+        if retcode < 0:
+            sys.stderr.write("doxygen error code: {}\n".format(-retcode))
+    except OSError as e:
+        sys.stderr.write("doxygen execution failed: {}\n".format(e))
+
+def setup(app):
+    # Add hook for building doxygen xml when needed
+    app.connect("builder-inited", generate_doxygen_xml)