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Distroless Docker Images: Smaller, Safer Containers

DevOps

July 20269 min read

Distroless Docker Images: Smaller, Safer Containers

How distroless base images and multi-stage builds cut Docker image size and CVE surface, plus how to debug a container that has no shell at all.

PostgreSQL Row-Level Security for Multi-Tenant SaaS

Backend

July 202610 min read

PostgreSQL Row-Level Security for Multi-Tenant SaaS

How to enforce tenant isolation inside the database itself with PostgreSQL row-level security, session variables, and tests that actually prove isolation holds.

Zero-Downtime Database Migrations with Prisma

Backend

July 202610 min read

Zero-Downtime Database Migrations with Prisma

Ship schema changes without taking your app offline, using the expand-contract pattern with Prisma: backfills, dual-write windows, and safely dropping old columns.

Feature Flags in NestJS: Progressive Rollouts and Kill Switches

Backend

July 20269 min read

Feature Flags in NestJS: Progressive Rollouts and Kill Switches

How to add feature flags to a NestJS backend for percentage rollouts, per-tenant targeting, and kill switches, without letting flag debt pile up.

Designing Reliable Webhooks: Retries, Signing, and Replay

Backend

July 202610 min read

Designing Reliable Webhooks: Retries, Signing, and Replay

A practical blueprint for webhooks your consumers can actually trust: HMAC signing, at-least-once delivery with backoff, idempotency keys, and a replayable event log.

Passkeys in Next.js: Passwordless Auth with WebAuthn

Security

July 202610 min read

Passkeys in Next.js: Passwordless Auth with WebAuthn

A practical walkthrough of adding passkey login to a Next.js app: the WebAuthn registration and authentication ceremonies, storing credentials safely, and what to offer users whose devices do not support passkeys.

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