diff --git a/export.py b/export.py
index 492a7ad..e97961a 100644
--- a/export.py
+++ b/export.py
@@ -1,16 +1,10 @@
 import json
-import argparse
-import sqlite3
-import pandas as pd
+from collections import Counter
+from html import escape
 
-conn = sqlite3.connect(':memory:')
-c = conn.cursor()
 with open("data/bugs.json") as f:
     data = json.load(f)
 
-df = pd.DataFrame(data)
-df.to_sql('bugs', conn)
-
 domain_map = {
 'dbms' : 'Database Management Systems',
 'datalog' : 'Datalog Engines',
@@ -18,25 +12,111 @@
 'compiler&interpreter': 'Compilers and Interpreters'
 }
 
-common_where_clause = "(resolution IN ('confirmed', 'fixed', 'open') OR resolution IS NULL)"
-domain_count_query = 'SELECT domain, COUNT(*) FROM bugs WHERE ' + common_where_clause + ' GROUP BY domain ORDER BY COUNT(*) DESC;'
+def is_included(entry):
+    return entry.get('resolution') in ('confirmed', 'fixed', 'open', None)
+
+
+included_bugs = [entry for entry in data if is_included(entry)]
+domain_counts = Counter(entry.get('domain') for entry in included_bugs)
+ordered_domains = sorted(domain_counts.items(), key=lambda item: item[1], reverse=True)
+
 print('<b>Overview</b><br/>')
 print('<ul>')
-for domain, count in c.execute(domain_count_query).fetchall():
+for domain, count in ordered_domains:
     print('<a href="#%s"><li>%s: %d bugs</li></a>' % (domain, domain_map[domain], count))
 print('</ul>')
 
+print('''
+<div class="bug-database-controls">
+<button type="button" class="expand-bug-databases">Expand all databases</button>
+<button type="button" class="collapse-bug-databases">Collapse all databases</button>
+</div>
+<style>
+.bug-database-controls {
+  display: flex;
+  gap: 0.6rem;
+  margin: 1rem 0;
+  flex-wrap: wrap;
+}
+
+.bug-database-controls button {
+  padding: 0.4rem 0.8rem;
+  border: 1px solid #1565c0;
+  border-radius: 4px;
+  color: #1565c0;
+  background: transparent;
+  cursor: pointer;
+}
+
+.bug-database-controls button:hover {
+  color: #fff;
+  background: #1565c0;
+}
+
+.bug-database-group {
+  margin: 0.8rem 0;
+  border: 1px solid rgba(0, 0, 0, 0.12);
+  border-radius: 4px;
+}
+
+.bug-database-group > summary {
+  padding: 0.7rem 1rem;
+  cursor: pointer;
+  font-size: 1.15rem;
+  font-weight: 600;
+}
+
+.bug-database-group[open] > summary {
+  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
+}
+
+.bug-database-group > .bug-entry {
+  margin: 0.7rem 1rem;
+}
+</style>
+''')
+
 print('<br/>')
-for domain, count in c.execute(domain_count_query).fetchall():
+for domain, count in ordered_domains:
     print('<h2 id="%s">%s (%d bugs)</h2>' % (domain, domain_map[domain], count))
-    for system, count in c.execute(("SELECT system, COUNT(*) FROM bugs WHERE domain = '%s' AND " + common_where_clause + " GROUP BY system ORDER BY COUNT(*) DESC") % (domain,)).fetchall():
-        print('<h3>%s (%d bugs)</h3>' % (system, count))
-        for title, url, found_by, resolution in c.execute(("SELECT title, url, reported_by, resolution FROM bugs WHERE domain='%s' AND system='%s' AND " + common_where_clause + ";") % (domain, system)).fetchall():
-            print('<details>')
-            print('<summary>%s</summary>'% (title, ))
+    domain_bugs = [entry for entry in included_bugs if entry.get('domain') == domain]
+    system_counts = Counter(entry.get('system') for entry in domain_bugs)
+    ordered_systems = sorted(system_counts.items(), key=lambda item: item[1], reverse=True)
+    for system, count in ordered_systems:
+        print('<details class="bug-database-group">')
+        print('<summary>%s (%d bugs)</summary>' % (escape(system or 'Unknown database'), count))
+        for entry in domain_bugs:
+            if entry.get('system') != system:
+                continue
+            title = entry.get('title')
+            url = entry.get('url')
+            found_by = entry.get('reported_by')
+            resolution = entry.get('resolution')
+            print('<details class="bug-entry">')
+            print('<summary>%s</summary>' % escape(title or 'Untitled bug'))
             if resolution is None:
                 resolution = 'unconfirmed'
-            print('Status: %s<br />' % (resolution, ))
-            print('Link: <a href="%s">%s</a> <br />' % (url, url))
-            print('Found by: %s' % (found_by,))
+            safe_url = escape(url or '', quote=True)
+            print('Status: %s<br />' % escape(resolution))
+            print('Link: <a href="%s">%s</a> <br />' % (safe_url, escape(url or '')))
+            print('Found by: %s' % escape(found_by or 'Unknown'))
             print('</details>')
+        print('</details>')
+
+print('''
+<script>
+document.addEventListener('DOMContentLoaded', function() {
+  var groups = Array.prototype.slice.call(document.querySelectorAll('.bug-database-group'));
+  var expandButton = document.querySelector('.expand-bug-databases');
+  var collapseButton = document.querySelector('.collapse-bug-databases');
+  if (!groups.length) return;
+
+  expandButton.addEventListener('click', function() {
+    groups.forEach(function(group) { group.open = true; });
+  });
+
+  collapseButton.addEventListener('click', function() {
+    groups.forEach(function(group) { group.open = false; });
+  });
+});
+</script>''')