diff --git a/demo-site-config.json b/demo-site-config.json
index 64a382ff..a520e6cb 100644
--- a/demo-site-config.json
+++ b/demo-site-config.json
@@ -1,7 +1,13 @@
+// This is the config file for https://demo.sourcebot.dev.
+// To add a new repository, edit this file and open a PR.
+// After the PR is merged, the deploy demo workflow will
+// run (see: https://github.com/sourcebot-dev/sourcebot/actions/workflows/deploy-demo.yml),
+// after which the changes will be reflected on the demo site.
 {
     "$schema": "https://raw.githubusercontent.com/sourcebot-dev/sourcebot/main/schemas/v3/index.json",
     "connections": {
-        // https://docs.sourcebot.dev/docs/connections/github
+        // Defines the GitHub repositories.
+        // See: https://docs.sourcebot.dev/docs/connections/github
         "github-repos": {
             "type": "github",
             "token": {
@@ -221,12 +227,10 @@
                 "envoyproxy/envoy"
             ]
         },
-        // https://docs.sourcebot.dev/docs/connections/gitlab
+        // Defines the GitLab repositories.
+        // See: https://docs.sourcebot.dev/docs/connections/gitlab
         "gitlab-repos": {
             "type": "gitlab",
-            "token": {
-                "env": "GITLAB_TOKEN"
-            },
             "projects": [
                 "gnachman/iterm2"
             ]
diff --git a/packages/web/src/components/ui/data-table.tsx b/packages/web/src/components/ui/data-table.tsx
index 5002c7da..27b373b8 100644
--- a/packages/web/src/components/ui/data-table.tsx
+++ b/packages/web/src/components/ui/data-table.tsx
@@ -22,7 +22,8 @@ import {
 import { Button } from "@/components/ui/button"
 import { Input } from "@/components/ui/input"
 import * as React from "react"
-
+import { PlusIcon } from "lucide-react"
+import { env } from "@/env.mjs"
 
 interface DataTableProps<TData, TValue> {
     columns: ColumnDef<TData, TValue>[]
@@ -60,7 +61,7 @@ export function DataTable<TData, TValue>({
 
     return (
         <div>
-            <div className="flex items-center py-4">
+            <div className="flex items-center justify-between py-4">
                 <Input
                     placeholder={searchPlaceholder}
                     value={(table.getColumn(searchKey)?.getFilterValue() as string) ?? ""}
@@ -69,6 +70,22 @@ export function DataTable<TData, TValue>({
                     }
                     className="max-w-sm"
                 />
+                {/*
+                    Show a button on the demo site that allows users to add new repositories
+                    by updating the demo-site-config.json file and opening a PR.
+                */}
+                {env.NEXT_PUBLIC_SOURCEBOT_CLOUD_ENVIRONMENT === "demo" && (
+                    <Button
+                        variant="default"
+                        size="default"
+                        onClick={() => {
+                            window.open("https://github.com/sourcebot-dev/sourcebot/edit/main/demo-site-config.json", "_blank");
+                        }}
+                    >
+                        <PlusIcon className="w-4 h-4" />
+                        Add repository
+                    </Button>
+                )}
             </div>
             <div className="rounded-md border">
                 <Table>