--- title: "Bun 1.4's bun test --parallel cuts a 4-second suite to about 1 second" published: true published_at: 2026-10-06 13:00 +0300 description: "I measured Bun 1.4's new bun test --parallel flag: a 4.04s suite dropped to 1.03s on 4 workers for IO-bound tests, but a CPU-bound suite plateaued at ...
Read articleHere's a pattern I keep seeing. A team wires up an AI agent that can do real things — send emails, run commands, query and modify the database, call external APIs. The demo is magical. It reads a request, figures out the steps, takes them, reports success. Everyone's impressed, and it ships. Then ...
Read article> This is the fifth post in my **"My Open-Source Projects"** series, where I go through some of the OSS projects I started or maintain and tell you the story behind them. So far: [AngleSharp](https://dev.to/florianrappl/my-oss-projects-anglesharp-3b8j), [MAGES](https://dev.to/florianrappl/my-oss-pro...
Read articleEvery dev picks up a pile of rules early on. Write tests first. Never commit to main. Keep functions under 20 lines. DRY everything. Comment your code. 100% coverage or it doesn't count.  Some ...
Read article--- title: "I forked a live AI agent three ways, and every copy came up with its web server already running" published: true published_at: 2026-10-05 14:46 +0300 description: "An agent built an app inside a DigitalOcean Managed Agents microVM. I checkpointed it, forked it three ways, screenshotted e...
Read articleHi everyone! A little late, perhaps, but in this article, I’d like to share that my new project is participating in Hacktoberfest. I have been participating with projects for three years now, and this year was no exception. Today, I would like to talk about this in more detail. Well, let's get sta...
Read article*This is a submission for the [Sanity Challenge, Path One: Ship an Agent That Queries Real Content](https://dev.to/challenges/sanity-2026-09-16)* ## What I Built > **Entitled** (adj.): having a legal right to something. India runs thousands of welfare schemes across central and state governments....
Read articleI recently put out a video arguing that frontend development is changing. I don't think the work is going away. The frontend developer title is what's changing, and a lot of us are turning into full stack developers. The comments had opinions, so I recorded a follow-up. {% embed https://www.youtub...
Read article# 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...
Read articleHoi hoi! 👋 I'm [@nyaomaru](https://github.com/nyaomaru), a frontend engineer exploring new possibilities with `Jev` 😸 (I'm also curious about "Decisions API" from OpenAI) Recently, I was looking into the TypeScript Compiler API and asking a pretty specific question > Can reusable type guards pr...
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