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⚡ AI Lessons

Dev.to · Rost
2d ago
Pi Coding Agent Review: Minimal, Hackable AI Coding CLI
Pi Coding Agent is a minimal, open-source terminal coding harness that ships with four default tools...

Dev.to · Rost
📰 AI News & Updates
⚡ AI Lesson
2w ago
Data Gravity: The Real Cost of API-First AI
Every API call feels like a simple transaction - until enough of them accumulate that your...

Dev.to · Rost
💻 AI-Assisted Coding
⚡ AI Lesson
2w ago
Claude Code Subagents: Setup, Config, and When to Use Them
Most Claude Code sessions get slow and cluttered for the same reason: every exploratory grep, every...

Dev.to · Rost
🧠 Large Language Models
⚡ AI Lesson
3w ago
Ollama to vLLM: When to Migrate Your Local LLM Server
Ollama is one of the easiest ways to run a local language model, but convenience can conceal the...

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...

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...

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...

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,...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...
DeepCamp AI