164 articles
Fix PostgreSQL’s ‘FATAL: role does not exist’ error — why psql picks the wrong username, creating roles correctly, and Docker and macOS specifics.
Do hiring managers really look at GitHub in 2026? What they check, what they ignore, when a profile helps, and what to do if yours is empty.
Run zero-downtime database migrations in 2026 — expand-contract pattern, backfilling safely, avoiding table locks, dual writes, and rollback strategy.
Fix React’s ‘Too many re-renders’ error — why calling setState during render loops, the four causes, and correct patterns for handlers and derived state.
How many hours a day should you code to improve? Why deliberate practice beats raw hours, realistic schedules, and the diminishing returns nobody mentions.
Run Kubernetes locally in 2026 with kind and k3d — cluster creation, ingress, local image loading, persistent volumes, and a fast inner development loop.
Fix React’s exhaustive-deps warning properly — why it appears, when it signals a real bug, and the correct patterns instead of disabling the lint rule.
Does open source contribution help your career in 2026? An honest look at hiring impact, time cost, which contributions matter, and when it is not worth it.
Add Stripe payments to Next.js in 2026 — Checkout sessions, webhooks, signature verification, idempotency, subscriptions, and going live safely.
Fine-tune a large language model on your own GPU using LoRA and QLoRA — data prep, training, merging, and running the result locally.
