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muthuishere

Show HN: Portable offline LLM knowledge system that runs in browser

Most local LLM setups are not portable. This bundles model, embeddings, chunks and metadata into a single export. The exported package runs fully in the browser without internet or install. Trying to solve reproducibility and deployment in restricted environments. https://github.com/muthuishere/offline-llm-knowledge-system �

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Show HN: Agent skill for Excalidraw diagrams with animation and image

I like using Excalidraw for diagrams, especially the hand-drawn style. But I don’t like starting from a blank canvas. I usually spend 10–15 minutes placing boxes and arrows before I even get to the actual thinking. I tried some existing Excalidraw MCP/agent skills, but they didn’t work well for me. No image export, no animation, and the style didn’t match what I wanted. So I built a small agent...

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Show HN: Securing a no-traffic VPS by watching SSH and HTTP logs

I run a very small VPS to host demos for my open source work. Traffic is minimal (maybe 10–20 users), so I assumed no one really cared.After checking the logs, I realized that assumption was wrong.Even with almost no real users, the server was constantly scanned: SSH brute-force attempts, HTTP probing for .env, AWS credential paths, and random endpoints.Nothing broke, but it was clear I wasn’t...

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From Docker Desktop (300% CPU) to Colima and Portainer (0.2%) on macOS

Docker Desktop on macOS often sits in a VM that constantly sucks CPU. For years I tolerated it—until today, when running just two Node.js apps + one Python app pegged my system, froze the UI.I switched to Colima and pointed docker context use colima. Then added Portainer for UI (docker run -d -p 9000:9000 ...).With the same compose setup, Colima usage dropped to ~0.2%Portainer provides...

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Show HN: LNB – Cross-platform command manager for binaries and aliases

You build tools. Shell scripts. Docker commands. Things you want to run from anywhere.But every OS has different rules:Mac/Linux: edit .bashrc, .zshrc, mess with PATH, source it Windows: create .bat, set up %PATH%, hope PowerShell respects itYou waste time managing commands instead of building things.LNB solves that in one line:npm install -g lnbThen:lnb alias build "docker run -v...

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Dual-Crypt – Working AES+RSA Encryption Between Java Spring Boot and React/JS

Encrypt in Java, decrypt in the browser (or seed JS-encrypted payloads into Java). Sounds straightforward. It’s not.You hit landmines like:Mismatched IV/tag defaults (Java Crypto API vs WebCrypto)Conflicting key formats (X.509 vs JWK vs raw)Varied Base64 implementations and encoding subtletiesI spent hours chasing these. So I made Dual-Crypt, a fully working example:AES-256-GCM + RSA-2048,...

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Cfex: A CLI Tool Built on Cloudflared exposing HTTPS/HTTP/3 on your own domain

I recently built cfex, a small CLI tool to simplify how developers, startups, and teams share work-in-progress applications for feedback, testing, or demos.With just one command:bash Copy code cfex api.yourdomain.com:8080 Your app goes live at https://api.yourdomain.com with HTTPS and HTTP/3 enabled by default. It’s built on top of cloudflared, similar to ngrok, but supports custom domains and...

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Securely Delegate Access Without Sharing Passwords: AccessManager Autologin Pro

I am author of Autologin chrome extension. Very soon it will be deprecated because of chrome MV3 policiesI'm currently working on AccessManager Autologin Pro, a tool designed to stop the hassle of sharing passwords and instead delegate access securely with automated login management.Here’s how it works:Delegate Access with Ease: Instead of sharing your credentials, you'll provide an extension...

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Show HN: PresentMarkdownNow – Turn Markdown Files into Live Presentations

https://www.npmjs.com/package/present-markdown-now

I've built PresentMarkdownNow, a tool for converting Markdown files into live presentations in the browser. It's a straightforward npm package aimed at anyone who regularly uses Markdown for documentation or notes and needs an easy way to present it live - great for teaching, demos, or meetings.Available on npm: https://www.npmjs.com/package/present-markdown-nowI made this for personal use but...

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Re:Ask HN: Who is hiring? (September 2023) on Sunday September 03, 2023 @05:52AM (#37369080)
Will you sponsor visa or work remotely from other country?