AI didn't save $500k. A test suite did.
Behind every successful AI rewrite story, there is an unsung hero. And it's never the AI. Chances are you've already come across the Reco story. Their…
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The Go Memory Model, Why Your Concurrent Code Might Be Lying to
You write two goroutines. One sets a variable, the other reads it. You run it a thousand times and it works fine. Then it breaks in production, on a d…
🚀 OathMesh v1.0.0-rc.1: Zero-Trust API Keys That Survive the Real World
Replacing static API keys with 5-minute, self-destructing Ed25519 tokens sounds great—until your Redis node dies, NTP drifts, or you realize you have …
Testing a Go exchange API client: mocks, httptest and testcontainers
The Go service runs locally, tests pass. Then you remember the tests are hitting the real Binance API. The next day, CI fails: rate limit exceeded, un…
DDD in Go applied to crypto exchange APIs
You write CQRS. You talk about aggregates. You emit domain events. But where do these concepts come from? Domain-Driven Design. Without understanding …
Проектируем сервис HTTP-запросов: Kafka, PostgreSQL, Redis-очередь и миллионы логических партиций
Ни одна «одна технология» не закрывает это без слоёв. Сначала — почему в стеке именно Kafka, PostgreSQL и Redis ; дальше — как мы спроектировали серви…
Your test suite is the only thing that makes AI agents useful
A company called Reco converted JSONata from JavaScript to Go in 7 hours using AI. Seven. Hours. Not seven sprints. Not seven engineers over seven wee…
Deploy Agents Across NATs and Firewalls with Pilot Protocol. No VPN. No ngrok.
Deploying multi-agent systems across distinct physical networks introduces immediate routing constraints. While agents communicating within a single l…
Finding a Practical Analytics Format for Structured JSON Logs
Structured JSON logs are easy to produce and hard to analyze at scale. They carry useful context, but that context is nested, optional, inconsistent, …
Your security tool should tell users what to change, not just what's wrong
Our findings said 'this bucket is public.' Users asked 'what do I change to fix it?' We derived the answer mechanically from the predicate AST — no pe…
Building an IPC bus for Kubernetes sidecars: WAL, DLQ, and ring-buffer backpressure
If you put two sidecars in a pod and ask them to talk to each other over HTTP, sooner or later one of them crashes mid-request and you lose a message.…
Essential DevTools Every Go Developer Should Know
Essential DevTools Every Go Developer Should Know Go ships with a powerful standard toolchain that many developers underestimate. Beyond writing code,…
Built Gova, a declarative GUI framework for Go
I spent the last few months building Gova. It is a declarative GUI framework for Go that compiles native desktop apps to a single static binary on mac…
Деконструкция GO: CPU, RAM и что там происходит. Оптимизации на CPU. Часть 1.4
Первые великие оптимизаторы появились уже на таком низком уровне, как железо. По факту, задача выжимки ресурсов в программировании есть на любом уровн…
Testify is making your Go tests worse
Pop quiz. Does this testify assertion pass or fail? var x [] int y := [] int {} require . Equal ( t , x , y ) If you're like me, you have no idea. Arg…
Postgres MCP in Go - Giving Claude Code a Live Line to Your Database
Introduction Copy-pasting SQL from a chat window into a DB client and back again is how most "AI + database" workflows actually feel. 🙃 It breaks flow…
Interface in Go ฉบับรวบยอด
Interface กับ OOP จากบทความที่แล้ว เราทำ OOP ด้วยการผูก method ให้ struct ผ่าน receiver ทีนี้ถ้าเราอยากจัดการกับ struct หลายประเภทที่มีพฤติกรรมเหมือนก…
Фикстуры в Go: как перестать писать инфраструктуру в автотестах
В Go нет фикстур, и в интеграционных тестах это быстро превращается в копипаст. Разбираем, как вынести инфраструктуру из автотестов и управлять жизнен…
htop for Your Git History
You clone a repo you've never seen before and you want to understand it. Not the code, not yet. The shape of the project. Who's been working on it? Ho…
Rust vs Go vs Zig for High-Performance Backend Services in 2026
Rust vs Go vs Zig: High-Performance Backend Services in 2026 Three languages compete for the performance-critical backend market. Each makes different…
Clean Architecture + DDD в Go: как не превратить проект в 200 файлов ни о чём
Прежде чем погружаться в архитектуру, давайте посмотрим на контекст, в котором всё это происходит. По данным исследования McKinsey 2022 года, техничес…
PHP to Go: The Mental Model Shift Nobody Warns You About
Book: Observability for LLM Applications · Ebook from Apr 22 Also by me: Thinking in Go (2-book series) — Complete Guide to Go Programming + Hexagonal…
Rust vs Go for AI Infrastructure in 2026: Here's What the Benchmarks Actually Say
Book: Observability for LLM Applications · Ebook from Apr 22 Also by me: Thinking in Go (2-book series) — Complete Guide to Go Programming + Hexagonal…
Testing Real-World Go Backends Isn't What Many People Think
I've reviewed enough Go backend test suites to notice a pattern. The services with the most unit tests are often the ones with the most production inc…
Building Authentication From Scratch in Go — No Libraries, No Magic
In Part 2 , I had a working REST API with two endpoints. You could create entries and query them. But anyone could hit the API — no login, no tokens, …
Go's Concurrency Is About Structure, Not Speed: chan and context as Lifecycle Primitives
For a while, I thought channels were Go's way of doing message passing. Something like Erlang processes or actors, except with a simpler syntax. That …
Relay vs Laravel Reverb: A Real Performance Benchmark
We built Relay because we believed a WebSocket server written in Go would handle real-world connection loads more efficiently than one running in PHP.…
Microsoft killed VBScript, so I built a custom Go VM to bring Classic ASP into 2026
Hey DEV community! 👋 I don't have a formal IT degree—my day job is actually as a Doctor —but I am a self-taught Go developer with a massive passion fo…
Sentinel Diary #3: From Information to Action — When the Dashboard Learned to Think
Sentinel Diary #3: From Information to Action — When the Dashboard Learned to Think A vibe coding journey: building a Kubernetes FinOps platform from …
Маленькое инженерное чудо: почему я переписал ввод-вывод для контестов на Go
Python берут за скорость реализации. C++ - за производительность и контроль над памятью. А Go? Go выбирают те, кто любит Go. Я один из них. Долгое вре…