@kellslte

Debugging a Blue-Green Deployment from Scratch: Six Errors, Six Fixes, One Working System

May 5 · 12 min read · We recently set up a blue-green deployment pipeline for a Node.js/Next.js marketplace application running on a single VPS, with GitHub Actions as the CI/CD layer and nginx as the reverse proxy. The sy

Why I Started Teaching Software Development (And What I Got Wrong)

May 5 · 4 min read · I didn’t start teaching because I thought I was a great teacher. I started teaching because I thought I understood software development well enough to help someone else get into it. That assumption di

Building ACA Athlons: An Honest Walkthrough of Our LMS Sprint

Mar 21 · 11 min read · We built Athlons in a sprint. A real one — not the kind where you say "sprint" and mean three comfortable weeks. Athlons is the Learning Management System for Attueyi Coding Academy (ACA), a tech scho

From One Process to 1,000 Users: How I Scaled a Nigerian Marketplace API Without Rewriting It

Mar 19 · 9 min read · There is a specific kind of dread that comes from looking at a production application you built and realising it would fall apart under any real load. Not because the code is bad, but because certain

Lessons from a Multi-Tenant School Portal - What Worked, What Hurts, and What I’d Change Next Time

Jan 6 · 6 min read · The first time I spun up this multi-tenant school management portal on my machine, I didn’t start with the code. I started with a question: “If I were a school admin, would I ever trust this thing with my students’ data?” Ten minutes later, I was...