threaded HTTP server, rate limiting, remove slow-web rhetoric

handlers.py

@@ -1043,9 +1043,10 @@ def handle_about():
 
     return _respond(
         f'<h1>{esc(name)}</h1>'
-        f'<p>A personal search engine, built for the slow web.</p>'
-        f'<p>TinyWeb is about taking back the internet. No algorithms, no ads, no tracking. '
-        f'Just human-curated pages shared freely across a mesh network.</p>'
+        f'<p>A personal, decentralized search engine.</p>'
+        f'<p>You save pages you find. They are stored locally and shared over a mesh network '
+        f'so other people can find them too.</p>'
+        f'<p>Search results come from your index and the indexes of people you are connected to.</p>'
         f'<ul>'
         f'<li><b>{page_count}</b> page(s) indexed</li>'
         f'<li><b>{tag_count}</b> tag(s)</li>'
@@ -1069,18 +1070,6 @@ def handle_about():
         f'The <a href="/export">export</a> page gives you a JSON dump of pages only — '
         f'it does not preserve your identity or subscription state, so it is a migration aid, '
         f'not a substitute for a full backup.</p>'
-        f'<h2>what is the slow web?</h2>'
-        f'<p>The slow web is a movement for intentionality over speed, '
-        f'human curation over algorithmic feeds, privacy over surveillance, '
-        f'and community over corporations. Every page in this index was saved by a person '
-        f'because they found it valuable — not because an algorithm told them to click.</p>'
-        f'<h2>how it works</h2>'
-        f'<ul>'
-        f'<li>Save pages you find valuable with the bookmarklet or /add</li>'
-        f'<li>Search your personal index — queries never leave your machine</li>'
-        f'<li>Subscribe to friends over Reticulum — encrypted, decentralized, works without the internet</li>'
-        f'<li>Tag and organize your collection into curated lists</li>'
-        f'</ul>'
         f'<p><a href="/">search</a> | <a href="/pages">browse</a> | <a href="/tags">tags</a></p>'
     )