Backend· 6 min read
How to Design REST APIs That Don't Break Under Load
Pagination, timeouts, idempotency keys, rate limiting and caching: the API design decisions that keep a Node.js or NestJS backend standing on launch day.
Blog
Practical guides by Emmanuel Ngene on building web and mobile apps that hold up in production: API design, databases, authentication, performance and clean handovers.
Databases· 6 min read
8 Database Schema Mistakes That Hurt Startups Later
Money as floats, timestamps without time zones, missing indexes and locking migrations: PostgreSQL and MongoDB schema mistakes, and the cheap fixes.
Security· 5 min read
Authentication for Web and Mobile Apps: Sessions, JWTs and Refresh Tokens
How to hash passwords, choose between sessions and JWTs, rotate refresh tokens and store them safely in browsers and React Native apps.
Frontend· 5 min read
Core Web Vitals for React Apps: Fixing LCP, INP and CLS
A practical guide to faster React, Next.js and Vite sites: what LCP, INP and CLS measure, and the fixes that improve each one.
Process· 5 min read
Handover-Ready Code: A Checklist for Developers and Startups
README, environment variables, migrations, tests, CI, decision records and account ownership: what a clean software handover needs.