Recipes for systems I build. Each one is a step-by-step walkthrough — schema, infrastructure, code, and wiring — so someone else can rebuild it without cloning a repo. Teaching the pattern, not handing off the source.
Cross-App Auth on Cloudflare with Better Auth
One login across multiple Cloudflare apps. A shared worker handles identity, sessions, and invites. Each app resolves its own user profile by auth_user_id.
Dev Secrets with envchain
Store secrets in the macOS Keychain and inject them directly into your dev process. No .env file, no plain text on disk, nothing to run before npm run dev.
AI-Operated Prospecting on Cloudflare D1
A prospecting pipeline backed by D1 that discovers B2B leads from county parcel data and Google Places, enriches them, and lets an AI agent qualify them.
Proton Mail Inbox Triage with Claude Code
A Claude Code skill that connects to Proton Mail Bridge via IMAP, scans sender frequency, and batch-trashes thousands of emails with a CSV audit trail.
AI-Operated Bookkeeping on Cloudflare
Double-entry ledger on a Worker + D1 + R2, with an AI agent that reads receipts, enters transactions, and queries the books through a locked-down API.