The EngTools Blog
Engineering deep-dives, tool teardowns, and lessons learned building in the open.
By ANBMZ LLC
4 Posts
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Server-Side Security Risks When Fetching User-Supplied URLs
When you build a tool that fetches URLs on behalf of users, you hand attackers a powerful weapon. This post walks through the real threats — SSRF, DNS rebinding, open redirects, and more — and how we harden against each one in our EngTools backend.
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Why I Built Blinky: Saving My Eyes from 14-Hour Coding Sessions
How I built a native macOS menu bar app to fight eye strain with smart blink reminders, gamified stats, and non-intrusive UI — because the 20-20-20 rule is useless if you can't remember to follow it.
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How I Built an AI That Conducts Mock Coding Interviews
The idea behind intervu.dev, the tech decisions that shaped it, and the hard parts of making an AI interviewer that feels real — voice, code execution, and all.
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How I Built a Browser Game You Can Play With a PlayStation Controller
Building a game you play on PC with a console controller—no Steam, no launcher, just open a webpage and plug in the pad. The idea, the Gamepad API, and how I structured Dodge Run.