What an audit of a young marketing site found, and why fixing every point on the checklist still wouldn't have moved it off page six.

Modelling products and collections in Workers KV, syncing them to Stripe without breaking history, and the reliability limits of a store with no queries.

Ephemeral public demo stores that can't send email, take payments or be crawled, driven by one flag in the same signed document as everything else.

Files go from the browser straight to object storage. The server issues a URL, then trusts nothing until the client confirms.

Rebuilding a multi-tenant WhatsApp chatbot with a cheap classifier, a plain router and raw API calls instead of an agent framework.

An audit of a stays marketplace against what a real online travel agency needs, and the availability, rates and inventory model behind it.

What I learned by reading the source of a mature open-source LMS plugin before designing a quiz schema.

Grafana, Loki, Promtail, Prometheus, cAdvisor and node_exporter as their own compose stack, joined to the app only by a shared network.

A print shop's order system with a single three-state task machine, an atomic pickup, a delivery gate and a signed customer ledger.

One identity system for patients, clinic staff, distributors and admins: challenge-based OTP in Redis, rotating refresh tokens, and access that is checked in three separate layers.

Designing subscription tiers for a multi-tenant commerce platform so that billing state can never take a store's checkout offline.

Twilio subaccounts, a Chatwoot account, an agent bot, an inbox and a Meta embedded signup, wired into one onboarding flow.

Why the site moved from hand-written HTML to Astro, and how it deploys from a docs folder.

How a store Worker learns what it may do without ever learning what a plan is called, and why every failure path resolves to the shop still selling.

WebM chunks, WAV, decoded PCM and finally an AudioWorklet. What broke, why, and what the two failed write-ups got wrong.

How a per-tenant Worker and a central control plane talk to each other safely over unreliable networks, with no queue infrastructure.

Setting up a small codebase so that both people and coding agents can work in it reliably, without a 500-line instruction file.

What happens between a customer's message and the reply: filtering, acknowledging early, classifying, routing, a tool loop, a silent fallback and a four-call escalation.

A multi-tenant platform that bills merchants in one currency while their shoppers pay in another, and the bugs that appear when the two share a field.

Ping timeouts, restarting sessions and rapid reconnect loops. The fix wasn't a timeout setting; it was a blocking call.