BlogViral

Show HN: ZkzkAgent now has safe, local package management I built zkzkAgent as a fully offline, privacy-first AI assistant for Linux (LangGraph + Ollama, no cloud). It already does natural language file/process/service management, Wi-Fi healing, voice I/O, and human-in-the-loop safety for risky actions. Just added package management with these goals: - 100% local/offline capable (no web search required for known packages) - Human confirmation for every install/remove/upgrade - Smart fallback order to avoid conflicts: 1. Special cases (Postman → snap, VSCode → snap --classic, Discord → snap/flatpak, etc.) 2. Flatpak preferred for GUI apps 3. Snap when flatpak unavailable 4. apt only for CLI/system tools - Checks if already installed before proposing anything - Dry-run style preview + full command output shown - No blind execution — always asks "yes/no" for modifications Example flow for "install postman": → Detects OS & internet (once) → Recognizes snap path → pr...

Show HN: Blindspot – a userscript to block tab-switch detection A Tampermonkey userscript that disables in-browser anti-cheat mechanisms (BlurSpy, honest-responder). https://ift.tt/zcvrndZ February 21, 2026 at 09:04PM

Show HN: Celeste game installs as ELF binary (42kB) on ESP32/breezybox [video] https://www.youtube.com/watch?v=nufOQWBmwpk February 21, 2026 at 12:26AM

Show HN: Flask Is My Go-To Web Framework https://ift.tt/HTJWArj February 20, 2026 at 06:41PM

Show HN: Hi.new – DMs for agents (open-source) https://www.hi.new/ February 20, 2026 at 04:20AM

Show HN: Astroworld – A universal N-body gravity engine in Python I’ve been working on a modular N-body simulator in Python called Astroworld. It started as a Solar System visualizer, but I recently refactored it into a general-purpose engine that decouples physical laws from planetary data.Technical Highlights:Symplectic Integration: Uses a Velocity Verlet integrator to maintain long-term energy conservation ($\Delta E/E \approx 10^{-8}$ in stable systems).Agnostic Architecture: It can ingest any system via orbital elements (Keplerian) or state vectors. I've used it to validate the stability of ultra-compact systems like TRAPPIST-1 and long-period perturbations like the Planet 9 hypothesis.Validation: Includes 90+ physical tests, including Mercury’s relativistic precession using Schwarzschild metric corrections.The Planet 9 Experiment:I ran a 10k-year simulation to track the differential signal in the argument of perihelion ($\omega$) for TNOs like Sedna. The result ($\approx 0.00...