diff --git a/.gitignore b/.gitignore
index 6b9fd31..bd7ad8d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -27,3 +27,6 @@ logs/*
 # Build artifacts
 *.pkg.tar*
 *.deb
+
+# Vendored dependencies
+trends/site/static/vendor/
diff --git a/setup.py b/setup.py
index 4024ec7..4430a2d 100755
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,74 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 # Copyright (C) 2020-21 Sean Anderson <seanga2@gmail.com>
 
+from distutils.command.build import build as distutils_build
 import setuptools
+from setuptools.command.develop import develop as setuptools_develop
+import os
+
+class build_fetch(setuptools.Command):
+    def initialize_options(self):
+        self.build_lib = None
+        self.inplace = False
+        self.package_dir = None
+
+    def finalize_options(self):
+        self.set_undefined_options('build_ext',
+            ('build_lib', 'build_lib'),
+            ('inplace', 'inplace'),
+        )
+
+    def run(self):
+        import requests
+
+        if self.inplace:
+            build_py = self.get_finalized_command('build_py')
+            vendor = f"{build_py.get_package_dir('trends.site')}/static/vendor"
+        else:
+            vendor = f"{self.build_lib}/trends/site/static/vendor"
+
+        try:
+            os.mkdir(vendor)
+        except FileExistsError:
+            pass
+
+        ts = ["js/tom-select.popular.min.js", "css/tom-select.min.css"]
+        ts += [f"{file}.map" for file in ts]
+        urls = [f"https://cdn.jsdelivr.net/npm/tom-select@2.0.0/dist/{file}" for file in ts]
+        urls.append("https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js")
+
+        with requests.Session() as s:
+            for url in urls:
+                file = os.path.basename(url)
+                etag = f".{file}.etag"
+                file = os.path.join(vendor, file)
+                etag = os.path.join(vendor, etag)
+
+                print(f"Saving {url} to {file}")
+                headers = {}
+                try:
+                    with open(etag) as e:
+                        headers['If-None-Match'] = e.read()
+                except FileNotFoundError:
+                    pass
+
+                resp = s.get(url, headers=headers)
+                resp.raise_for_status()
+                if not len(headers) or resp.status_code != requests.codes.not_modified:
+                    with open(file, 'wb') as f:
+                        f.write(resp.content)
+
+                    with open(etag, 'w') as e:
+                        e.write(resp.headers['etag'])
+
+class develop(setuptools_develop):
+    def run(self):
+        self.reinitialize_command('build_fetch', inplace=1)
+        self.run_command('build_fetch')
+        super().run()
+
+class build(distutils_build):
+    sub_commands = [('build_fetch', None)] + distutils_build.sub_commands
 
 setuptools.setup(
     name = 'trends.tf',
@@ -20,7 +87,10 @@
         'COPYING',
         'LICENSES/*',
     ],
-    setup_requires = ['setuptools_scm'],
+    setup_requires = [
+        'requests',
+        'setuptools_scm',
+    ],
     install_requires = [
         'flask >= 2.0',
         'mpmetrics',
@@ -42,6 +112,11 @@
             'testing.postgresql'
         ],
     },
+    cmdclass = {
+        'build': build,
+        'build_fetch': build_fetch,
+        'develop': develop,
+    },
     entry_points = {
         'console_scripts': [
             "trends_importer=trends.importer.cli:main",
diff --git a/trends/site/templates/base.html b/trends/site/templates/base.html
index 659edce..2c2848c 100644
--- a/trends/site/templates/base.html
+++ b/trends/site/templates/base.html
@@ -10,9 +10,10 @@
 	<link rel="stylesheet" type="text/css"
 	 href="{{ url_for('static', filename='css/style.css') }}">
 	<title>{% block title %}trends.tf{% endblock %}</title>
-	{% set tom_select_prefix = "https://cdn.jsdelivr.net/npm/tom-select@2.0.0/dist" %}
-	<script type="module" src="{{ tom_select_prefix }}/js/tom-select.popular.min.js"></script>
-	<link rel="stylesheet" type="text/css" href="{{ tom_select_prefix }}/css/tom-select.min.css">
+	<script type="module"
+	 src="{{ url_for('static', filename="vendor/tom-select.popular.min.js") }}"></script>
+	<link rel="stylesheet" type="text/css"
+	 href="{{ url_for('static', filename="vendor/tom-select.min.css") }}">
 	{{ local_js("js/dates.js") }}
 	{{ local_js("js/filter.js") }}
 	<link rel="icon" href="{{ url_for('static', filename="img/favicon.ico") }}">
diff --git a/trends/site/templates/player/trends.html b/trends/site/templates/player/trends.html
index 22a5461..e0dde7e 100644
--- a/trends/site/templates/player/trends.html
+++ b/trends/site/templates/player/trends.html
@@ -9,7 +9,8 @@
 	{{ super() }}
 	<script type="text/javascript" defer>steamid64 = "{{ g.player['steamid64'] }}";</script>
 	<script id="trend-data" type="application/json">{{ trends | tojson }}</script>
-	<script type="module" src="https://cdn.jsdelivr.net/npm/chart.js@3.7.0/dist/chart.min.js"></script>
+	<script type="module"
+	 src="{{ url_for('static', filename="vendor/chart.min.js") }}"></script>
 	{{ local_js("js/trends.js") }}
 {% endblock %}
 {% block content %}