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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.

Security

July 202610 min read

Software Supply Chain Security: SBOMs and Sigstore

How to generate SBOMs, sign artifacts with Sigstore and cosign, verify SLSA provenance, and enforce all of it as a CI gate.

Automated Secrets Rotation: A Strategy That Survives Audits

Security

July 20269 min read

Automated Secrets Rotation: A Strategy That Survives Audits

A practical blueprint for rotating credentials automatically, using short-lived and dynamic secrets, dual-secret cutovers, and fast leak detection so audits stop being a scramble.

Encrypting Secrets in Git with SOPS and age

Security

July 20268 min read

Encrypting Secrets in Git with SOPS and age

How to keep API keys and database credentials safely inside a Git repository using SOPS and age, with per-environment keys and CI decryption.

Building in Public as an Indonesian Developer

Career

July 20267 min read

Building in Public as an Indonesian Developer

What sharing my work openly actually did for my engineering career from Indonesia, the awkward parts nobody mentions, and a realistic playbook to start this week.

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