A few months ago, I published [You're a Real JavaScript Developer Only If...](https://dev.to/hadil/youre-a-real-javascript-developer-only-if-294c)
It was supposed to be a little post for fun.
You know, just a few things JavaScript developers could laugh about before going back to fighting their bu...
Here's a line from YouTube's auto-captions on a lecture about attention in neural networks:
> consider heart attention looking at the architecture heart attention is very similar to soft attention
The speaker said "hard attention" aka the counterpart of soft attention. The captions get it wrong sev...
# Building an Autonomous Competitor Price Monitor with Python, Playwright, and Discord (Zero SaaS Fees)
In dynamic e-commerce sectors, missing a competitor's flash sale or midnight re-pricing event by even three hours can wipe out daily margins. If your competitor cuts an anchor SKU by 15%, your co...
---
title: GitHub Issues as the Only Database: Running Coding CLIs Unattended Without a Server
published: true
description: ghswarm treats GitHub labels, Issue bodies and checkboxes as the state machine for orchestrating Claude Code / Codex / Cursor headlessly. No webhook, no FastAPI, no database — ...
# How I Built an Autonomous B2B Lead Enrichment & SMTP Verification Engine in Python for $0.003/Lead
If you have ever scaled outbound campaigns beyond a few hundred contacts a week, you know the exact failure mode: commercial lead databases are stale, bulk email validators miss catch-all domains, a...
[](https://img.youtube.com/vi/wPdoZRbvaF4/maxresdefault.jpg)
How do you currently test your AI agents?
If you're like most developers building agentic workflows, you probably rely on the **"vibe check"**: tweak a prompt, run a couple of manual queries, check if the output looks reasonable, and ass...
Most browser automation tools built for AI agents start from an inconvenient premise: they assume your task wants a clean, empty browser window.
Tools like Playwright or Puppeteer boot disposable profiles in headless mode. That's fine for running test suites in continuous integration. It falls fla...
Stop. Before you scroll past this, let me ask you something.
When you write `x = 10` in Python, what do you think happens?
If your answer is "Python puts the number 10 inside a box called x," you are wrong. And honestly? That wrong mental model is the reason behind 90% of the confusing bugs beginn...
---
title: "PNG admits when it is damaged and JPEG does not"
published: true
description: "One bit flipped, six image formats, 400 trials each. Every corrupted PNG was refused by Pillow and libpng, yet Chromium painted half of each one correctly. JPEG rendered complete images in which 96% of pixels ...
# My Scheduled Agent Ran 40 Times and Did Nothing — Here's the Assertion That Fixed It
I found this one by accident, which is the only way you find it.
Every night at 02:30, a job pulls new filings from an API, normalizes them, and drops them in a queue that feeds my morning briefing. It had been...