Knowledge Hub

Engineering Insights

Tutorials and build notes on AI agents, web applications and cloud infrastructure, informed by 8+ years of software development work.

All Articles

605 articles across 55 topics

Impeccable Skill for Claude Code: I Tested It on My Site

📝 AI Design

8 min read

Impeccable Skill for Claude Code: I Tested It on My Site

A design skill is only worth reviewing if you let it hurt you, so I ran the Impeccable skill's critique against my own site, the one with my...

#Claude Code #Design Systems #AI Skills

Engr Mejba Ahmed

Apr 30, 2026

Read Article

Claudeex Tested: Claude Code and Codex Loop for Plans

📝 AI Models

7 min read

Claudeex Tested: Claude Code and Codex Loop for Plans

The plan looked clean. Twelve numbered steps. Architecture diagram in markdown. Database migration order spelled out. I was about to hit "im...

#Claude Code #AI Workflow #Codex CLI

Engr Mejba Ahmed

Apr 30, 2026

Read Article

📝 Claude Code

17 min read

I Built a Niche Mobile App With Claude Code in a Weekend

The number that broke my brain was $1 million. Not $1M lifetime. Not $1M ARR. One million dollars in a single month, on iOS alone, from an a...

#Claude Code #Mobile Development #React Native

Engr Mejba Ahmed

Apr 29, 2026

Read Article

📝 OpenAI Codex

10 min read

OpenAI Codex Super App: I Tested Every Feature

I test OpenAI's Codex from a specific seat: Claude Code is my daily driver, on real client repos, every working day. That makes Codex the co...

#AI Agents #OpenAI Codex #Computer Use

Engr Mejba Ahmed

Apr 28, 2026

Read Article

📝 Claude Code

7 min read

Super Skills in Claude Code: My Real Build Log

Most Claude Code skills are static documents pretending to be capabilities. I should know — I have written more than fifty of them, publish...

#Claude Code #AI Agents #Claude Skills

Engr Mejba Ahmed

Apr 28, 2026

Read Article

Xiaomi MiMo 2.5 Pro Tested: Open Source Frontier?

📝 AI Models

21 min read

Xiaomi MiMo 2.5 Pro Tested: Open Source Frontier?

I read "Xiaomi" in the headline and almost kept scrolling. That sounds dismissive. It is, a little. But here's the honest truth about how I'...

#AI Models #Open Source AI #Agentic Coding

Engr Mejba Ahmed

Apr 28, 2026

Read Article

Qwen 3.6 Max Preview Tested: Cheaper Than Opus 4.7?

📝 AI Models

18 min read

Qwen 3.6 Max Preview Tested: Cheaper Than Opus 4.7?

I almost didn't open the tab. It was 11:47 PM on April 20, my agent harness was finally running clean after two weeks of fighting tool-call...

#AI Models #Agentic Coding #Hands-On Review

Engr Mejba Ahmed

Apr 27, 2026

Read Article

Learning Resources

Expand Your Knowledge

Accelerate your growth with structured courses, verified certificates, interactive flashcards, and production-ready AI agent skills.

AI School

Structured courses on AI development, machine learning, and prompt engineering with hands-on lessons.

Browse Courses

Certificates

Earn verified certificates on completion. Share on LinkedIn, verify online, and showcase your skills.

Earn Certificate

Learning Flashcards

Master key concepts with interactive flashcard decks covering programming, DevOps, and system design.

Start Learning

AI Agent Skills

Explore a marketplace of ready-to-use AI agent skills for development, automation, and business workflows.

Explore Skills

Sample certificate — complete any course to earn yours

Engineering Insights

All Articles

Impeccable Skill for Claude Code: I Tested It on My Site

Claudeex Tested: Claude Code and Codex Loop for Plans

I Built a Niche Mobile App With Claude Code in a Weekend

OpenAI Codex Super App: I Tested Every Feature

Super Skills in Claude Code: My Real Build Log

Xiaomi MiMo 2.5 Pro Tested: Open Source Frontier?

Qwen 3.6 Max Preview Tested: Cheaper Than Opus 4.7?

Stay Ahead

Expand Your Knowledge

AI School

Certificates

Learning Flashcards

AI Agent Skills

Have a Project

in Mind?

Engr Mejba Ahmed

Hey there!