IAnswerable

30 Jan 2026

When SQLite Is Fine in Production

The workloads where SQLite beats Postgres, and the ones where it will hurt you.
29 Jan 2026

Three Redis Caching Patterns That Cover Most Cases

Cache-aside, write-through, and TTL jitter, with when to use each.
28 Jan 2026

Run Database Migrations Without Downtime

The expand-contract pattern for changing columns on a live table.
27 Jan 2026

Practice Your Postgres Restore Before You Need It

A backup you've never restored is not a backup. Here's the drill.
26 Jan 2026

Postgres Connection Pooling with PgBouncer

Why your app runs out of connections and how pooling fixes it.
23 Jan 2026

Which Postgres Index Should You Actually Add

B-tree, GIN, partial indexes, and how to tell which one your query needs.
22 Jan 2026

Find the Slow Query Killing Your Postgres

pg_stat_statements and EXPLAIN ANALYZE without the academic detour.
21 Jan 2026

Improve Your CDN Cache Hit Ratio

Why your CDN keeps going to origin and the header mistakes behind it.
20 Jan 2026

HTTP Caching Headers, Explained Once

Cache-Control, ETag, and max-age in plain language with a decision table.
19 Jan 2026

Load Web Fonts Without the Flash

font-display, preloading, and self-hosting fonts for speed and privacy.