Owain Lewis

31 videos18.2K subscribers

Practical AI engineering for software builders. Learn to use Claude Code, Codex and AI agents to ship real products and make money as an AI developer. New tutorials every week from a former principal engineer and engineering director building a one person AI software business.

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Owain Lewis

Recent Videos (31 of 31)

GPT-6 Astra Tested: I Built a Carousel Generator From Scratch

I Built A Self-Improving AI Software Factory

I Tested DeepSeek Agent Harness Against Codex and Claude Code

Agentic Design Skills For Claude Code and Codex

Build Your Own Coding Agent Like Pi (With 1 Prompt)

I Built an Agentic Software Factory with Codex and Claude Code

I Replaced Hermes Agent And OpenClaw With This

Herdr Gives You Full Control Over Multiple AI Agents

How I use agent loops and goals (Claude Code + Codex).

Claude Code's New Subagent Feature

Agent Loops: Complete Guide (Claude Code + Codex)

Codex Can Manage Itself

My GitHub AI Workflow: Codex + Claude Code

7 Codex Skills I Can't Live Without

Deploy Code With AI Agents (OpenAI Codex + Google Cloud)

How I Use OpenAI Codex (Real Workflow)

Pi Coding Agent (Free Course)

How I Test With Claude Code (AI TDD)

RAG for AI Agents, Explained Simply

How I Review AI-Generated Code

My Multi-Agent Team (Live Demo)

Build Your Own Coding Agent (From Scratch)

The Full AI Development Workflow (Not Just Code)

AI Agents Fix Code While I Sleep (OpenAI Codex Automations)

Claude Code Agent Teams in 12 Minutes

Claude Code + Linear (Coding Agent Workflow)

How I Code With AI Agents (Spec-Driven Development)

The Simplest Way to Build AI Agents (No Frameworks)

RAG Agents Made Easy With Gemini File Search (Python Tutorial)

Build Production AI Agents in 2025 [With LiteLLM]

How To Build AI Agents In Slack (With N8N)