Show HN: GreatArrow.ai – Shared memory for Claude, ChatGPT, Gemini and Cursor https://ift.tt/j3wGdxJ

Show HN: GreatArrow.ai – Shared memory for Claude, ChatGPT, Gemini and Cursor https://ift.tt/PFfxmvL August 6, 2026 at 07:55PM

Show HN: Tmagnet – a terminal torrent client written in C https://ift.tt/bkOj1fA

Show HN: Tmagnet – a terminal torrent client written in C https://ift.tt/0ucIEgl August 6, 2026 at 06:50PM

Show HN: Sidebar – a private ESP32 intercom for five kids, no accounts https://ift.tt/4E7NH23

Show HN: Sidebar – a private ESP32 intercom for five kids, no accounts Hello all - Inspired by many who build/assemble for their daughters/sons, I took cue and assembled a two-way communication between my son and his friends. Nothing spectacular. Just basic stuff to talk. He is eleven and doesn't have a phone. I wanted him to talk to his friends without an account, a feed, or an algorithm in between, so I built five ESP32-S3 touchscreen units, one per kid. Tap a friend's name, their unit rings. Tap Everyone, they all ring. Each unit dials outbound to a relay I run, so no house opens a port. Audio is uncompressed 16 kHz PCM in 20 ms frames, AES-256-GCM with a fresh key per call, over UDP with an encrypted-WebSocket fallback. To be precise: encrypted to my relay, not end-to-end. No rooms, no recordings, no free-text contacts; the roster lives in a server-side allow-list. I'm a PM, engineer by degree but not by profession - let alone a firmware engineer. I assembled this with Claude as the engineering partner, which is why the write-up includes what went wrong: I shipped an OTA that boot-looped my son's board, and separately "diagnosed" a Cloudflare outage that didn't exist because I tested from the wrong vantage point. Echo is still unsolved. The enclosure was designed in FreeCAD by my son (11); the STLs are in the repo. It was a fun and exhilarating work for me and my son - like most of you would have experienced. Looking forward for your responses/feedback. https://ift.tt/gqCvZ5e August 7, 2026 at 12:31AM

Show HN: QWERTY MIDI – Isomorphic Layout MIDI Controller https://ift.tt/TCIDSsZ

Show HN: QWERTY MIDI – Isomorphic Layout MIDI Controller https://ift.tt/5GucEsj August 6, 2026 at 10:27PM

Show HN: S3mini v1 – Tiny and fast S3 client, no-deps, for Node, Bun, Cloudflare https://ift.tt/Jzfimba

Show HN: S3mini v1 – Tiny and fast S3 client, no-deps, for Node, Bun, Cloudflare https://ift.tt/2pawLq7 August 6, 2026 at 05:02AM

Show HN: Hacker News with reduced priority for AI driven content https://ift.tt/5tlsiCE

Show HN: Hacker News with reduced priority for AI driven content https://hn-without-ai.vercel.app/ August 5, 2026 at 10:31PM

Show HN: Sift – MCP aggregator that exposes 2 tools instead of hundreds https://ift.tt/h7oCHa5

Show HN: Sift – MCP aggregator that exposes 2 tools instead of hundreds https://ift.tt/KNqivz7 August 6, 2026 at 01:00AM