Running a serverless AI code review agent on AWS Lambda with PR-Agent and CDK
Code reviews are an essential part of our day to day work. Their importance and way of execution have changed a bit in the GenAI era. In this post,…
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I tried to check if our new blockchain tools were being used. The tool that would have told me was also silently broken — and so were two other things.
The tool I built to check if anyone used our API was itself silently broken — and so were two other things security #cloudflare #webdev #serverless…
Serverless and Agentic Coding Are a Match Made in Heaven
I am not going to spend this whole article making the usual serverless argument. Yes, managed infrastructure is useful. Yes, automatic scaling is ni…
The Model's JSON Was Almost Valid. I Made It Grade Its Own Homework for 48 Hours.
Every extraction pipeline I have ever pointed at a language model shares the same dirty secret: the JSON comes back almost valid. Almost is where th…
AWS Serverless Weather Data Pipeline
Building a Serverless Weather Pipeline on AWS: A Step-by-Step Walkthrough This is a build log for someone who's used AWS a bit — deployed a Lambda f…
Building a Disposable Notion Agent on Cheap Models
TL;DR: We built a one-shot HTTP worker that talks to Notion through MCP. Version one worked. Version two got cheaper and more readable, then failed…
Building a server monitoring SaaS on Cloudflare Workers — architecture, decisions, mistakes
TL;DR Pulse is a server monitoring SaaS I built as a solo founder for Latin American small businesses. It runs entirely on Cloudflare Workers + Turs…
Agents Don't Start with Prompts. They Start with Events.
Lately, it seems like everything is an agent. Open LinkedIn and you'll find posts about AI Agents. Go to YouTube and you'll see tutorials on LangCha…
Background Jobs on Vercel in 2026: Field Notes on waitUntil, Queues, Workflow, and Cron
Headline: Serverless did not kill background work — it killed background work that outlives the response without telling the runtime. I now route ev…
How to Build a Serverless, Zero-Database Web App for 100k+ Users Using Client-Side Image Processing
As software engineers, our default setting is often to over-engineer. When tasked with building a web utility—such as an image sorter or a layout pl…
How I Built a Flat-Rate Reverse Geocoding API for Japan to Escape Google Maps Bill Shock
If you've ever built a global app or travel tool operating in Japan, you know the struggle: Google Maps Geocoding API pricing : At $5.00 per 1,000 r…
AWS Lambda and NestJS: Communication between services
Originally published on Medium on November 11, 2023. In this guide, we’ll speak about communication in a distributed system using AWS Lambda and Nes…
Serverless: When It Helps and When It Hurts
Introduction Serverless computing has become a buzzword in cloud architecture. But like any tool, it has sweet spots and sharp edges. After building…
Stone.js: your app exists in every runtime, until you run it
The rewrite tax Count the versions of your last real-world app. There is the Express or Nest version for the server. The handler you extracted and m…
Everyone Knows Trump's Tweets Move Markets. I Measured It: the Connection Is Real — the Direction Isn't.
#NebiusServerlessChallenge Live dashboard: Myth-Busting Quantitative Terminal · Live endpoint: /predict on Nebius Serverless · Code: github.com/Kora…
"Why I Build Serverless, Client-Side Utilities: The Architecture of QuickQR and ARTRES"
In a development culture obsessed with heavy frameworks and complex backend infrastructure, there is massive, untapped power in pure client-side exe…
The AWS Lambda Node.js 20 deadline everyone gets wrong (it's not September 2026)
If you searched "nodejs20.x Lambda deadline" recently, you probably read that AWS blocks new function creation on Aug 31, 2026 and updates on Sep 30…
GitOps for Geospatial Data: Building a Self-Healing, Zero-Cost Data Pipeline with GitHub Actions
Most data engineering and geospatial projects follow a predictable infrastructure blueprint: an ingestion cron job, an enterprise database (like Pos…
fluent-ffmpeg vs FFmpeg Micro: Why Node.js Developers Switch to a Cloud API
Originally published at ffmpeg-micro.com fluent-ffmpeg is the go-to FFmpeg wrapper for Node.js developers. It works perfectly on your laptop. Then y…
Why I Chose Neon (dev.to Database Partner) for My AI Routing Platform
When Neon became the official database partner of DEV Community, I was already a user. But the partnership made me look closer at why I chose Neon —…
Azure Logic Apps vs Function Apps: Choosing the Right Tool for the Integration
Two Azure services can look nearly identical on paper. Both connect systems. Both can call an external API, transform data along the way, and handle…
Let Aurora Sleep: Multi-Tenant SaaS Cost, Reconsidered with AI IaC
For most multi-tenant SaaS, the default still rhymes: PostgreSQL on Aurora, behind an API, in a private subnet. Stable, well-understood, the shape y…
Building BrewCore: Espresso Tracking on Vercel, DynamoDB, and Amazon Bedrock
Beyond the Timer: How I Built BrewCore for the H0 Hackathon Home espresso is a paradox. Baristas obsess over the micro-details the gram weight, the…
I Built a Serverless Stranger-Matching Tool with Zero Database — Here is the Architecture
The elevator pitch You open fata.uk , write a few lines about what is on your mind, and AI finds a stranger whose emotional frequency matches yours.…
Remotion + FFmpeg Micro: Programmatic Video Without the Lambda Bill
Originally published at ffmpeg-micro.com Remotion lets you build videos the same way you build React components. But moving those compositions from…
Building an ML-Powered Notification Routing Engine on AWS
Most applications send notifications using static schedules. The problem is that users have different engagement patterns. A notification sent at th…
Sending SMS from AWS Lambda with the Sinch SDK
Your payment just failed. The user needs to know before they try to check out again. Your deployment pipeline just finished. The engineer who kicked…
I got tired of waiting for deploys, so I built a local Lambda runner
There's a specific kind of frustration that comes from iterating on Lambda code. You change one line. You run cdk deploy . You watch the CloudFormat…
Tossed The T.V. but Kept the Remote? Here's how to NOT generate more E-Waste.
This is a submission for the GitHub Finish-Up-A-Thon Challenge Link to the Repo So what is this? Doesn't look like an API 👁️👁️ Tossed The TV Kept th…
I Built pretext-pdf: Serverless PDFs Without Chromium
I Built pretext-pdf: Serverless PDFs Without Chromium I got frustrated with PDF generation in Node.js. Every tool had trade-offs, and none of them f…