Zero-Downtime Database Migrations: How to Change a Live Schema Safely
A migration that finishes in milliseconds on your laptop can lock a production table for an hour. This guide shows how to avoid that: the ex...
Oct 14, 2026
7 min
Multi-Tenant Architecture: Serving Many Customers from One System Without Mixing Their Data
A practical guide to multi-tenant architecture for SaaS. Compare silo, pool and bridge isolation, see a Postgres row-level security example ...
Oct 4, 2026
8 min
How to Choose a Database in 2026: Eight Options Compared by Use Case
No database is best at everything. This guide compares eight popular ones by use case, license, current versions and trade-offs, so you can ...
Oct 1, 2026
11 min
You Probably Don't Need Elasticsearch: Building a Fast, Typo-Tolerant Search Engine in PostgreSQL
Every engineering team hits the same milestone: your application grows past a few tens of thousands of records, users complain that basic da...
Sep 28, 2026
10 min
Postgres vs MySQL vs MongoDB: The 2026 Decision Guide
Built on real 2026 version data, license terms, primary-sourced case studies, and a benchmark run on live Postgres and MySQL instances, not ...
Sep 7, 2026
13 min
Implementing Full-Text Search in NestJS with TypeORM and PostgreSQL
Learn how to build production-ready full-text search in NestJS with TypeORM and PostgreSQL, covering generated tsvector columns, GIN indexin...
Aug 28, 2026
6 min
Implementing Passkey Authentication in NestJS and PostgreSQL
A code-first guide to adding WebAuthn passkey registration and login to a NestJS and PostgreSQL API: the schema, the service, the controller...
Aug 27, 2026
10 min
We Added Redis to Make Things Faster. It Made Things Worse.
We added Redis to fix a slow endpoint and watched response times drop. Then came stale data, invalidation problems, traffic spikes, and data...
Jul 30, 2026
7 min
Four Ways a Refresh Token Request Fails — Only One Means Trouble
A refresh token system where every token is single-use and belongs to a token family. Invalid, expired, and revoked are routine. Reuse means...
Jul 7, 2026
7 min