5 heuristic bugs that made my design-token tool call a bright cream page "dark and moody"
i maintain a small cli called brandmd . it points a headless browser at any url, reads the computed css, and writes a DESIGN.md that AI coding agents …
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Stop pasting JWTs into random websites — I built a zero-dep CLI to decode them in your terminal
You're debugging an auth issue. There's a JWT in a log line, or in an Authorization header you copied out of the network tab. You need to know two thi…
The Best React Data Grid Is the One You Will Not Hate After Feature Request Number Seven
I have never seen a product manager open a ticket called: Turn this table into a small operating system. It happens one perfectly reasonable request a…
From Signals to Ownership: Why I Built a Dataflow Kernel
When I first started building signal-kernel , I thought I was simply writing a signal library—a fine-grained reactive system not tied to any specific …
[FREE] A self-hosted WordPress analytics plugin where your visitor data never leaves your server
I recently released a free, privacy analytics plugin for WordPress. It's cookieless, stores everything in your own database, and loads zero external r…
How to Fine-Tune LLMs on Your Own Data: Open-Source Models, RL Environments, and Evals
If you use LLMs long enough, you hit the same wall. The frontier model is impressive, but it is not always the best model for your job. It may be too …
I tracked every GitHub traffic spike for my open source LLM proxy for 7 weeks. Then I did the exact same thing again, and it worked again.
When I shipped Trooper , a privacy-aware LLM proxy written in Go, I didn't have a marketing plan. I had GitHub traffic analytics and a habit of checki…
Run GLM-5.2 Locally: The Open Model Nobody Can Ban
On June 9, Anthropic shipped Claude Fable 5 — the most capable coding model the industry had ever seen. Three days later, the U.S. government ordered …
Why we open sourced our Slack agent (and what we learned about the AI coworker space)
We open sourced Centaur last month—a Slack agent we built for our own investing and engineering work. Over the past few months it's grown to 100-150 d…
The Cheapest Way to Self-Host Fider in 2026
Last updated: June 2026 Fider is the open-source feedback board a lot of teams reach for once Canny or UserVoice sends the renewal invoice. Public roa…
The Model Context Protocol (MCP): what it is and how to build a server
The Model Context Protocol (MCP): what it is and how to build a server Your team's LLM-powered application talks to a search index through one custom …
Building Loom (Part 3): Real-Time Browser UI with SSE, Goroutines, and Channels
This is Part 3 of my series building Loom. 👉 Missed Part 2? Read it here Today: Building the real-time browser UI with SSE, goroutines, and channels. …
Introduction to Git
Welcome to Git Mastery , a series where we'll learn Git from the ground up, starting with the absolute basics and gradually moving toward advanced wor…
Turn any PHP host into a gateway to your local network with host2gateway
Ever wanted to turn a simple PHP host into a gateway for your local network? I built host2gateway to do exactly that. ProfiDE / host2gateway Uses a PH…
UVS: a draw's fairness as a fact you can recompute — not a certificate you trust
I've built casino slot machines and gaming systems for 15 years. I mostly stayed away from compliance, but once I had to write the official algorithm …
I tried "GEO" on my indie tool — it was just SEO (here's the GSC data)
Every other newsletter this year told me my SaaS needed GEO — Generative Engine Optimization. Write an llms.txt . Add "AI-only" schema. Chunk your con…
Build a Private Voice Assistant with Whisper, Ollama, and Kokoro TTS
Have you ever wanted your own Jarvis? A voice assistant that listens, thinks, and speaks back - all running privately on your own hardware? Here's how…
Give Your Local AI Tool-Calling Superpowers with Open WebUI and MCP
Want a ChatGPT-like experience where your AI can search the web, read your files, query databases, and run code? Open WebUI + MCP makes it possible - …
AR4 Mark 5: This Open-Source 6-Axis Robot Arm Is Finally Done
A six-axis robot arm sitting on your desk used to mean five figures and a service contract. Chris Annin's AR4 quietly tore that idea up — and with the…
AI Pair Programming in Your Terminal with Aider and Ollama
Want an AI coding assistant that works on YOUR codebase, respects YOUR git history, and doesn't send your code to the cloud? Aider + Ollama gives you …
Hillock: A brain-inspired, CPU-bound memory gate for local LLMs
Hi everyone, I've been hacking on a local personal memory system called Hillock . Honestly, it's very much a work in progress and it isn't some flawle…
Building an AI-Resistant Post-Quantum VPN in Rust 🦀 (With an Open Crypto Challenge)
Hello Dev.to! 👋 I'm the architect of an experimental post-quantum VPN protocol called QCRA (Quantum-Chess Routing Architecture). It’s written entirely…
I built an AI code reviewer as a GitHub Action — here's what I learned
If you've spent time on software engineering teams, you know pull request reviews are the ultimate bottleneck. They're slow, inconsistent, and often s…
I built an offline wiki that fits in a single 19 KB HTML file
I kept hitting the same wall looking for an offline wiki. Kiwix is great, but it's an app plus multi-GB ZIM files. IPFS needs connectivity and setup. …
When the conclusion comes first
A sponsored benchmark is just an experiment with a sponsor. So read it like one. I read a lot of vendor benchmarks. Most are fine. They are marketing,…
I built a 3B lease risk scanner that runs without an external LLM API
I built Lease Lens for the Hugging Face Build Small Hackathon . The idea is simple: most people sign contracts they do not really read. That is true f…
Starting My LFX Mentorship Journey: Building Contributor Identity Verification for Hiero
Today, June 15th, 2026, I officially start my 6-month LFX mentorship under the Linux Foundation Decentralized Trust (LFDT) program. I will be working …
قمر — Complete Guide
قمر (Qamar): راهنمای جامع و فنی در دنیای پرهیاهوی توسعه نرمافزار، گاهی اوقات به ابزارهایی نیاز داریم که به جای پیچیدگیهای بیمورد، مستقیماً روی حل ی…
Making a fleet of self-hosted LLM agents trustworthy
Originally published at llmkube.com/blog/making-self-hosted-llm-agents-trustworthy . Cross-posted here for the dev.to audience. Running a single local…
Why I Built a New Memory Plugin for Hermes Agent
Hermes Agent already has memory, and that matters. It keeps local context, it improves over time, and it works without forcing you into a cloud servic…