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📰 Dev.to · Rost

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All Articles 167,039Blog Posts 159,508Tech Tutorials 44,299Research Papers 32,759News 21,332 ⚡ AI Lessons
Keeping Specs, Tests, And Code In Sync In AI Development
Dev.to · Rost 💻 AI-Assisted Coding ⚡ AI Lesson 3w ago
Keeping Specs, Tests, And Code In Sync In AI Development
AI coding agents ship features fast, but specs, tests, and code quietly drift apart. This guide...
Dead Letter Queues: Handling Poison Messages in Distributed Systems
Dev.to · Rost 🏗️ Systems Design & Architecture ⚡ AI Lesson 3w ago
Dead Letter Queues: Handling Poison Messages in Distributed Systems
A dead-letter queue is the safety net that catches messages your consumers cannot process, so one...
Circuit Breaker Pattern in Go: Stop Cascading Failures
Dev.to · Rost 🔧 Backend Engineering ⚡ AI Lesson 1mo ago
Circuit Breaker Pattern in Go: Stop Cascading Failures
A circuit breaker stops your Go service from hammering a failing dependency, preventing cascading...
Podman Quadlet vs Docker Compose for Linux Services
Dev.to · Rost ☁️ DevOps & Cloud ⚡ AI Lesson 1mo ago
Podman Quadlet vs Docker Compose for Linux Services
Docker Compose and Podman Quadlet solve overlapping problems but come from different design centers,...
Hermes Agent: Headless Server + Remote Desktop Setup
Dev.to · Rost ☁️ DevOps & Cloud ⚡ AI Lesson 1mo ago
Hermes Agent: Headless Server + Remote Desktop Setup
Running Hermes Agent on a headless server while connecting from a desktop client on another machine...
Run Docker Compose as a Linux Service with systemd
Dev.to · Rost ☁️ DevOps & Cloud ⚡ AI Lesson 1mo ago
Run Docker Compose as a Linux Service with systemd
Docker Compose on a Linux server should start on boot, stop cleanly on shutdown, and survive reboots...
Install Docker on Ubuntu: APT, Snap, Rootless — Complete Guide 2026
Dev.to · Rost ☁️ DevOps & Cloud ⚡ AI Lesson 1mo ago
Install Docker on Ubuntu: APT, Snap, Rootless — Complete Guide 2026
Installing Docker on Ubuntu should be simple, but in practice several Docker-shaped options compete...
Multi-Agent Orchestration Patterns: A Practical Guide
Dev.to · Rost 🤖 AI Agents & Automation ⚡ AI Lesson 1mo ago
Multi-Agent Orchestration Patterns: A Practical Guide
Single-agent AI systems peaked in 2025 — you gave one LLM a prompt, some tools, and a goal, and it...
Transactional Outbox Pattern in Go with PostgreSQL
Dev.to · Rost 🔧 Backend Engineering ⚡ AI Lesson 1mo ago
Transactional Outbox Pattern in Go with PostgreSQL
Two writes that should succeed together will eventually fail separately. Your order service saves the...
Go context.Context Done Right: Cancellation, Timeouts, and Values
Dev.to · Rost 🔧 Backend Engineering ⚡ AI Lesson 1mo ago
Go context.Context Done Right: Cancellation, Timeouts, and Values
Go's context.Context is simple enough to use badly — and that is the problem. Most Go developers...
Decision Records for AI-Driven Software Development
Dev.to · Rost 💻 AI-Assisted Coding ⚡ AI Lesson 1mo ago
Decision Records for AI-Driven Software Development
Decision records are the missing memory layer in AI-assisted software development. They capture not...
Testing Concurrent Go Code with synctest
Dev.to · Rost 🔧 Backend Engineering ⚡ AI Lesson 1mo ago
Testing Concurrent Go Code with synctest
Testing concurrent Go code has always required a bit of discipline. Goroutines are cheap, channels...
Polling Agents in AI Assistants: 11 Implementation Patterns
Dev.to · Rost 🤖 AI Agents & Automation ⚡ AI Lesson 1mo ago
Polling Agents in AI Assistants: 11 Implementation Patterns
Polling agents are one of the least glamorous parts of AI assistant architecture, but they are also...
What Is the A2A Protocol? Agent Cards and Tasks Explained
Dev.to · Rost 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago
What Is the A2A Protocol? Agent Cards and Tasks Explained
The A2A Protocol, short for Agent2Agent Protocol, is an open standard for communication between...
A2A vs MCP: Do AI Agents Really Need Both Protocols?
Dev.to · Rost 🤖 AI Agents & Automation ⚡ AI Lesson 2mo ago
A2A vs MCP: Do AI Agents Really Need Both Protocols?
AI agent architecture is starting to split into two layers. One layer is about giving an AI...
Implementing CQRS in Go: A Practical Guide to Scalable Architecture
Dev.to · Rost 🔧 Backend Engineering ⚡ AI Lesson 2mo ago
Implementing CQRS in Go: A Practical Guide to Scalable Architecture
CQRS is one of those patterns that gets oversold, overcomplicated, and occasionally misdiagnosed as a...
Cost Optimization for LLM Systems: Where the Money Actually Goes
Dev.to · Rost 🧠 Large Language Models ⚡ AI Lesson 2mo ago
Cost Optimization for LLM Systems: Where the Money Actually Goes
LLM costs scale linearly with usage. A system processing 10,000 requests a day at $0.01 per request...
LLM Guardrails in Practice: What Actually Works
Dev.to · Rost 🧠 Large Language Models ⚡ AI Lesson 2mo ago
LLM Guardrails in Practice: What Actually Works
LLMs are unpredictable. They hallucinate, leak data, generate harmful content, or refuse legitimate...
Model Routing: Stop Using One Model for Everything
Dev.to · Rost 📐 ML Fundamentals ⚡ AI Lesson 2mo ago
Model Routing: Stop Using One Model for Everything
Running a 70B parameter model to summarize a 200-word email is wasteful. Running a 3B model to review...
Multi-Model System Design: When One Model Isn't Enough
Dev.to · Rost 📐 ML Fundamentals ⚡ AI Lesson 2mo ago
Multi-Model System Design: When One Model Isn't Enough
Single-model systems are simple. Multi-model systems are powerful. The challenge isn't choosing...