diff --git a/docs/_templates/layout.html b/docs/_templates/layout.html
new file mode 100644
index 0000000..fa97a22
--- /dev/null
+++ b/docs/_templates/layout.html
@@ -0,0 +1,19 @@
+<!-- _templates/layout.html -->
+{% extends "!layout.html" %}
+
+{% block navigation %}
+    {{ super() }}
+    <div class="sidebar-versions">
+        <div class="version-wrapper">
+            <label for="version-switch">Documentation Version:</label>
+            <select id="version-switch" onchange="window.location.href=this.value">
+                <option value="/{{ project|lower }}/master-exraildoc/"{% if version == "main" %} selected{% endif %}>
+                    Production
+                </option>
+                <option value="/{{ project|lower }}/master-exraildocdev/"{% if version == "devel" %} selected{% endif %}>
+                    Development
+                </option>
+            </select>
+        </div>
+    </div>
+{% endblock %}
diff --git a/docs/conf.py b/docs/conf.py
index ae919e6..89884b1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -3,13 +3,19 @@
 # For the full list of built-in configuration values, see the documentation:
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
 
-# from sphinx.builders.html import StandaloneHTMLBuilder
+import os
 import subprocess
-# import os
+import sphinx.builders.html
 
 # Doxygen
 subprocess.call('doxygen DoxyfileEXRAIL', shell=True)
 
+# Get current version/branch
+try:
+    current_branch = subprocess.check_output(['git', 'rev-parse', '--abbrev-ref', 'HEAD']).decode('utf-8').strip()
+except Exception as error:
+    current_branch = 'unknown'
+
 # -- Project information -----------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
 
@@ -64,7 +70,7 @@ html_theme_options = {
     # 'titles_only': True,
     'collapse_navigation': False,
     # 'navigation_depth': 3,
-    'navigation_depth': -1,
+    'navigation_depth': 1,
     'analytics_id': 'G-L5X0KNBF0W',
 }
 
@@ -80,8 +86,23 @@ html_css_files = [
     'css/sphinx_design_overrides.css',
 ]
 
+baseurl_prefix = 'https://dcc-ex.com/CommandStation-EX/'
+
+# Change output directory depending on branch
+if current_branch in ['master-exraildoc', 'master-exraildocdev']:
+    # For versioning
+    html_baseurl = f"{baseurl_prefix}{current_branch}/"
+    html_extra_path = ['_build']
+    builddir = os.path.join('_build', current_branch)
+else:
+    # Main landing page
+    html_baseurl = baseurl_prefix
+    builddir = '_build'
+
+# Override default build directory
+sphinx.builders.html.get_outfilename = lambda self, pagename: os.path.join(builddir, pagename + '.html')
+
 # Sphinx sitemap
-html_baseurl = 'https://dcc-ex.com/CommandStation-EX/'
 html_extra_path = [
   'robots.txt',
 ]
diff --git a/docs/index.rst b/docs/index.rst
index 3f66b9f..8b80191 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -1,8 +1,5 @@
-.. EXRAIL2MacroReset documentation master file, created by
-   sphinx-quickstart on DATE.
-
-Welcome to EXRAIL2MacroReset's documentation!
-===============================================
+EXRAIL Language documentation
+=============================
 
 Introduction
 ------------
diff --git a/requirements.txt b/requirements.txt
index cbfe4c2..256a154 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,17 +1,25 @@
 alabaster==1.0.0
+attrs==25.1.0
 babel==2.17.0
 breathe==4.35.0
+cattrs==24.1.2
 certifi==2025.1.31
 charset-normalizer==3.4.1
 colorama==0.4.6
 docutils==0.21.2
+esbonio==0.16.5
+exceptiongroup==1.2.2
 idna==3.10
 imagesize==1.4.1
 Jinja2==3.1.5
+lsprotocol==2023.0.1
 MarkupSafe==3.0.2
 packaging==24.2
+platformdirs==4.3.6
 pyenchant==3.2.2
+pygls==1.3.1
 Pygments==2.19.1
+pyspellchecker==0.8.2
 requests==2.32.3
 snowballstemmer==2.2.0
 Sphinx==8.1.3
@@ -27,4 +35,5 @@ sphinxcontrib-qthelp==2.0.0
 sphinxcontrib-serializinghtml==2.0.0
 sphinxcontrib-spelling==8.0.1
 tomli==2.2.1
+typing_extensions==4.12.2
 urllib3==2.3.0