Build Log
Rails, deployment, infrastructure, ecommerce engineering, terminal UX, and concrete implementation details from the production store.
Field notes
When the Buyer Is an Agent
Build a machine-readable catalog and callable action surface so an agent can discover, evaluate, and purchase without guessing at a visual storefront.
Stripe Webhooks in Rails: The Gotchas Nobody Warns You About
Make checkout completion idempotent across webhook and frontend races while preserving signature verification and a reliable payment state machine.
Automating Product Creation With the Printify API
Automate upload, variant selection, publishing, and mockup sync while accounting for the API quirks that only appear in a production catalog.
How launchd Runs Our Fleet of 10 AI Agents Around the Clock
Build a lightweight scheduling and health layer with launchd, SQLite, process spawning, and three tiers of failure detection.
Self-Hosted vs Managed Agent Infrastructure: An Honest Comparison
Compare the control, maintenance, portability, and operating tradeoffs between a self-hosted agent fleet and a managed agent platform.
SQLite in Production: Lessons from Running a Store on a Single File
Run Rails on SQLite with WAL and Docker volumes while accounting for the concurrency failure that appears during blue-green deploys.
We Built a Terminal Inside a Hotwire App (Here's When to Ignore Your Framework)
Build a command parser, virtual filesystem, tab completion, and checkout state machine where a terminal interaction does not fit Hotwire's strengths.
Why We Built a Store You Shop With CLI Commands
Learn the interaction design behind browsing, cart management, and checkout in a storefront optimized for keystrokes instead of clicks.
How an AI-Run Store Stays Secure: Our Security Audit Pipeline
Tour the store's layered audit pipeline, from static analysis and access control through browser policy and timing-safe request checks.
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