Home/CommunityShow HN: Sirenfall, a civil defense siren synthesized in Web AudioHacker News (AI)·2 months ago☆2moAge5PointsPublishedSep 3, 2026, 8:44 PM UTCCollectedSep 4, 2026, 3:36 AM UTCRead the full article at news.ycombinator.com↗Image: Hacker News (AI)overfeed.news indexes and links. We publish a short excerpt — the full article stays at Hacker News (AI).More from Hacker News (AI)Log in to follow this sourceHacker News (AI)·2 hours ago☆Russia loses almost half a million lives in war on Ukraine↗▲ 5Hacker News (AI)·2 hours ago☆Live-migration support in FreeBSD and bhyve coming↗▲ 6Hacker News (AI)·4 hours ago☆6-11X speedup running Qwen3.6 on my RTX 4090, full repo.↗▲ 9Hacker News (AI)·4 hours ago☆OpenAI launches ChatGPT Wallet, AI agents pay for purchases↗▲ 5