Programming

The Pentester’s Guide to Finding CBC Bit Flipping Vulnerabilities

If you spend enough time poking at web applications, you’ll eventually run into a target that handles session management poorly. You’ll intercept a re…

I open-sourced every Binance and OKX 2026 fee tier as JSON (+ a calculator)

If you've ever written a backtest or a fee-aware order router for Binance or OKX, you've hit this wall: the exchanges publish their fee schedules as H…

Weekly roundup: Password strength, self-serve BAA, and AI updates

This week on the Appwrite blog, we shipped new Auth controls, made BAA acceptance self-serve for Pro organizations, covered Anthropic’s latest Claude …

rdev-go-api-template: Production-ready Go API Scaffolder & CLI Generator

rdev-go-api-template 🚀 The Concept A unified Go development utility that functions simultaneously as a production-ready architectural blueprint and an…

Kinesis Data Firehose Is Not a Silver Bullet: How Undocumented Partition Key Limits Broke Our Real-Time Analytics Pipeline

Our real-time data pipeline was failing due to mysterious throughput limits. The culprit? A little-known Kinesis Data Firehose limitation that has not…

You Already Know What Your First AI Rule Should Be. You Just Have Not Written It Down Yet.

Every developer who works with AI regularly has a list of corrections they make. Not a written list. A mental one. The things they fix after every ses…

How to write a project brief that actually helps you hire a Next.js developer

Writing a good brief before you hire a Next.js developer is the single thing that separates projects that land on time from ones that drift for months…

I Failed a Python Interview Because I Could Write Code But Not Read It

I want to tell you about the most embarrassing 45 minutes of my developer career. I had been practicing LeetCode for three months. Easy problems, done…

Winograd convolutions cost us 2 mAP and we didn't notice for a month

TL;DR: We turned on Winograd convolution to shave latency off a pedestrian detector running on a Cortex-A53, got a clean 18% speedup, and silently los…

Building a static repository for print-perfect PDFs

Most print-ready websites are slow, bloated, and covered in ads. I wanted to build a clean directory for paper templates that loads instantly and prin…

Why I stopped using cloud-based JSON and XML formatters (And what I built instead)

As developers, we constantly copy-paste data into online formatters, decoders, and tools. But have you ever stopped to think where that data goes? If …

The Biggest Challenges Software Developers Are Facing in 2026

Software development is evolving faster than ever, but developers are facing several new challenges: 🔹 Keeping Up with AI Tools AI coding assistants i…

I Stopped Paying Google and Built My Own Cloud

How I replaced Google Photos, Google Drive, and Google Home with a self-hosted Raspberry Pi 5 setup - and what the full technical stack looks like. Th…

Ollama Structured Outputs in Practice — Getting Type-Safe JSON from Local LLMs with Pydantic

json.loads(response) fails at a certain point. You told the model "return JSON only," but it added a ```json markdown code fence around everything. A …

Intelligence Brief: The Disinformation Machine

The Disinformation Supply Chain: How Coordinated Influence Campaigns Are Built Before They Go Viral Article from Digital HUMINT Series, For better und…

Overcoming Architectural Dogma: Why Infrastructure is a Business Stage Decision

One of the most persistent traps in modern software development is the tendency to turn architectural styles into absolute dogmas. We see it constantl…

Startup Security Guide & LLM CISO

An open-source security guide, compliance checklist, and LLM-based virtual CISO persona for startups -- with specialized coverage for foreign companie…

The Playwright Playbook — Part 3: Multi-User, Multi-Tab & Browser Context Testing

The Playwright Playbook — Part 3: Multi-User, Multi-Tab & Browser Context Testing "Most frameworks test one user at a time. Real apps don't work t…

Sunny Up! let's celebrate the international sushi day

This is a submission for the June Solstice Game Jam What I Built My game, Sunny Up, celebrates International Sushi Day! I intended to make a cute casu…

Fire-and-forget AI engineering: letting agents ship a production app unsupervised

"An AI agent just built a production landing page, with GDPR audit logs and encryption baked in. I wasn't even at my desk." That is not a lucky one-sh…

Headless Browser Detection in 2026: What Still Trips Up Playwright

Playwright is the best browser automation library in 2026. It's also the most fingerprinted, the most detected, and the most patched in anti-bot datab…

What is Block-Oriented Network Simulator (BONeS) 🦴?

📜 Before many modern networking tools existed, engineers were already using a graphical software environment called Block-Oriented Network Simulator (…

Humidifier cross-border multi-currency auto-sync rate calibration tech

Reverse overseas online shopping supports settlement in over ten mainstream foreign currencies, including the US dollar, euro, pound sterling, and Aus…

Introduction to LLMs for Beginners

We're going to build a command-line Topic Explainer that takes any subject and breaks it down for a chosen audience, from absolute beginner to expert.…

Building and Deploying Spring Petclinic Microservices on AWS: My Experience as Co-Project Lead and App & Docker Lead

Introduction As part of the DMI (DevOps Micro Internship) Cohort 2, our team successfully deployed the Spring Petclinic Microservices application on A…

CBC Bit Flipping Explained: Why Encryption Alone Doesn't Guarantee Integrity

Most developers learn a hard lesson at some point in their careers: just because data is encrypted doesn't mean it’s safe from tampering. It’s an easy…

Building Better Product Experiences Through Quiet Improvements

Yesterday was focused on the kind of product work that often happens behind the scenes but directly affects the quality of the user experience. The te…

The Starwarden — browser platformer: collect starlights, fight murklings, beat the darkness

This is a submission for the June Solstice Game Jam What I Built The Starwarden is a browser platformer: collect starlights to push back rising darkne…

A 27-Year-Old Authentication Bypass in OpenBSD's PPP Stack

Claude Code in Production: The Guardrails Nobody Talks About (Until Something Leaks)

Your Claude Code session just spit out a perfect PR description, refactored three services, and drafted commit messages for the entire sprint. Clean. …