Show HN: What Just Pinged Me? https://ift.tt/p01lLEz

Show HN: What Just Pinged Me? My wife kept getting some random-seeming notification sounds on her macbook that we couldn't identify - a little quarter second "bloop" that would play and then go away without any trace we could find. So I made (prompted) this app that will listen to the audio on the system and identify the sound. It will identify system sounds and use system logs to try to work out what caused it, it will tell you which apps were making sounds when the sound is played, it will look in app bundles for sound files that contain the sound it heard. If the source is the web browser and you install the bundled browser extensions it will tell you the name of the tab that played it. https://ift.tt/ODSh1aj September 13, 2026 at 07:05PM

Show HN: I was frustrated with AI giving confident answer,Even when it was wrong https://ift.tt/dzVJbUA

Show HN: I was frustrated with AI giving confident answer,Even when it was wrong https://demo.aqqai.in September 14, 2026 at 01:53AM

Show HN: Kairo – Fail-closed LLM inference routing from RTX 5090 measurements https://ift.tt/poZzIJt

Show HN: Kairo – Fail-closed LLM inference routing from RTX 5090 measurements https://ift.tt/sQy3g0m September 13, 2026 at 11:21PM

Show HN: Agent Avatar Generator https://ift.tt/9g7no3W

Show HN: Agent Avatar Generator https://ift.tt/0XejNxA September 14, 2026 at 12:22AM

Show HN: Astah Pro MCP – Enabling AI-Powered UML Modeling https://ift.tt/anJg3H5

Show HN: Astah Pro MCP – Enabling AI-Powered UML Modeling This MCP plugin implements a "Programmatic Tool Calling" mode, inspired by the idea described in this Anthropic article ( https://ift.tt/btgRlBx ). https://ift.tt/j7OLSrW September 13, 2026 at 12:07AM

Show HN: Most Penalized HN Stories https://ift.tt/Y7qP2Uh

Show HN: Most Penalized HN Stories This page shows which stories have the heaviest penalty applied to their Hacker News rank -- stories that rank lower than they should given their raw HN ranking formula. https://ift.tt/o8uxm9p September 12, 2026 at 09:36PM

Show HN: I wrote a book on using AI in game design production (free on GitHub) https://ift.tt/pyA0trq

Show HN: I wrote a book on using AI in game design production (free on GitHub) https://ift.tt/Z84m2Ot September 12, 2026 at 08:44AM