Show HN: Postbase – 100% open source Alternative to Firebase and Supabase [video] https://ift.tt/QuLwTKl

Show HN: Postbase – 100% open source Alternative to Firebase and Supabase [video] Postbase – 100% Opensource Alternative to Firebase and Supabase https://www.youtube.com/watch?v=St_kJZXZ_nE June 1, 2026 at 07:17AM

Show HN: Having fun making mini static site apps https://ift.tt/LnfC37y

Show HN: Having fun making mini static site apps I've been having a blast making multiple mini apps that run in the browser. I've been trying to see how far I can go without having a backend and relying on other services. I wrote these for fun and wanted to know what folks think. https://joeheyming.github.io/ June 1, 2026 at 02:02AM

Show HN: Zaxy v1.0 https://ift.tt/dezYq63

Show HN: Zaxy v1.0 https://docs.zaxy.io/ May 31, 2026 at 06:19PM

Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal https://ift.tt/4MUhRn6

Show HN: Breathe CLI – Paced resonance breathing in the macOS terminal I built a terminal app that paces slow breathing at 6 breaths per minute for vagal tone training. It's a single Python file, stdlib only, no dependencies — just run breathe and follow the bar. I'm a cardiology patient (HFrEF). Slow breathing at resonance frequency is one of the few non-pharmacological interventions shown to improve cardiac vagal tone and baroreflex sensitivity (Bernardi et al., Circulation 2002; Lancet 1998). I wanted a frictionless daily habit tool — no app store, no account, no subscription, just open terminal and go. Design constraints, all grounded in the clinical literature: - No breath retention — Valsalva risk in cardiac patients - No rapid breathing — minimum 8-second cycles - Exhale ≤ 2x inhale — no evidence for extreme ratios - Immediate exit, always — q or Ctrl+C restores the terminal even on crash The README includes a resonance frequency measurement protocol for anyone with a chest-strap HRV monitor who wants to find their individual optimum instead of using the 6 bpm default. macOS only (uses afplay for audio cues). MIT licensed. pip install breathe-cli or brew tap marekkowalczyk/breathe && brew install breathe. https://ift.tt/qtoRxdF May 30, 2026 at 05:30PM

Show HN: Komi-learn – continuous memory and self-improvement for coding agents https://ift.tt/Shiqmks

Show HN: Komi-learn – continuous memory and self-improvement for coding agents https://ift.tt/K4FqJiS May 31, 2026 at 02:11AM

Show HN: OWASP Agent Memory Guard – Stop AI Agent Memory Poisoning https://ift.tt/dpH7ets

Show HN: OWASP Agent Memory Guard – Stop AI Agent Memory Poisoning https://ift.tt/6AHMGmt May 31, 2026 at 12:17AM

Show HN: I made a Gemma 4 Mac app that names screenshots with local AI https://ift.tt/OQAk6va

Show HN: I made a Gemma 4 Mac app that names screenshots with local AI I made my first macOS utility app that ships with a bundled Gemma 4 model, specifically the Gemma E4B one. It made my app DMG have 5.3 GB in size, but I think it is a small size for the power that this free local model can provide. It runs fine on CPU, but can also run on Apple Silicon GPU, although I did not notice any performance improvements with GPU (tested on a M5 chip). I think these local lightweight and multimodal models will open multiple possibilities for new software tools where privacy is essential. https://snapname.app May 30, 2026 at 10:40PM