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Stefan CosmaLead Frontend Developer
Writing & thinking in public

Stefan
Cosma

Lead Frontend Developer Frontend Architect Technical Writer

Articles on frontend architecture, design systems, TypeScript patterns, and the craft of building high-quality web experiences — from 15+ years in the field.

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The Shifting Value of Frontend Engineering

AI isn’t taking our jobs, but it is radically shifting where our value lies. Typing speed was never the bottleneck—knowing what to build is. While tools handle the boilerplate, the real craft of frontend in 2026 is rooted in architecture, human empathy, and making good technical decisions.

architecture ai +1
· May 21, 2026 3 min
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Latest writing

The Shifting Value of Frontend Engineering

AI isn’t taking our jobs, but it is radically shifting where our value lies. Typing speed was never the bottleneck—knowing what to build is. While tools handle the boilerplate, the real craft of frontend in 2026 is rooted in architecture, human empathy, and making good technical decisions.

architecture ai +1
· May 21, 2026 3 min
Read

Why I ditched traditional CMS platforms for a custom-built stack

I rebuilt my blog to escape the limits of traditional CMS platforms. This post breaks down a high-performance stack using Astro SSR, Vercel, and Cloudflare, plus an automated pipeline that uses Supabase Edge Functions and Resend to blast newsletters the moment I hit publish.

cms astro +2
· Apr 28, 2026 3 min
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Beyond the Code: What I Learned Contributing to Zed’s Open Source

Make the tools you need if the ones you have don't work. I care a lot about my development environment, and switching to the Zed editor was the perfect reason to stop waiting for features and start helping out.

open-source zed
· Apr 2, 2026 3 min
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The YAGNI principle, as explained by AI.

The YAGNI principle encourages programmers to only implement features necessary for the current iteration of a project. Focusing on the MVP can reduce complexity, technical debt, and make code easier to maintain and refactor.

ai ml +2
· Feb 23, 2023 3 min
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How To: Interview a developer, as a developer!

This article goes over a simple approach of interviewing a developer, as a developer.

how-to interview +2
· Nov 10, 2022 5 min
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How To: Clean up Plex with Google Scripts

Just as the title implies, this tutorial is going to cover what it takes to automatically cleanup a Plex media server, using Google Scripts. I am aware there are other ways to do this, but this tutorial is tailored specifically for Google Scripts.

how-to tutorials +2
· May 29, 2020 5 min
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