Factory Core

Factory Core is a collection of 19 TypeScript packages that provide battle-tested, reusable infrastructure for Cloudflare Workers applications. Every Factory app installs only what it needs.

Stack

Layer	Technology
Runtime	Cloudflare Workers
Router	Hono
Database	Neon Postgres via Hyperdrive
Auth	JWT / Web Crypto API
LLM	Anthropic → Grok → Groq failover
Telephony	Telnyx + Deepgram + ElevenLabs
Email	Resend
Errors	Sentry
Analytics	PostHog + `factory_events`

Packages

Stage	Package	Purpose
1	`@latimer-woods-tech/errors`	Typed error hierarchy, `FactoryError`, `toErrorResponse`
1	`@latimer-woods-tech/monitoring`	Sentry integration for Cloudflare Workers
1	`@latimer-woods-tech/logger`	Structured JSON logger with levels and context
1	`@latimer-woods-tech/auth`	JWT issue/verify/refresh, `jwtMiddleware`, `requireRole`
1	`@latimer-woods-tech/neon`	Neon Postgres client via Hyperdrive, `withDbRetry`
1	`@latimer-woods-tech/stripe`	Stripe webhook handling, subscription lifecycle
2	`@latimer-woods-tech/llm`	Anthropic → Grok → Groq failover, streaming, `withSystem`
2	`@latimer-woods-tech/telephony`	Deepgram STT, ElevenLabs TTS, Telnyx webhooks, `VoiceSession`
3	`@latimer-woods-tech/analytics`	PostHog + `factory_events` DB table, event tracking
3	`@latimer-woods-tech/deploy`	Deployment scripts and CI helpers
3	`@latimer-woods-tech/testing`	Zero-dep mock factories for all packages
4	`@latimer-woods-tech/email`	Resend integration, typed email templates
4	`@latimer-woods-tech/copy`	LLM-powered copywriting with structured output
4	`@latimer-woods-tech/content`	Content management backed by Neon
4	`@latimer-woods-tech/social`	Social post scheduling and publishing
4	`@latimer-woods-tech/seo`	Meta tag generation, OpenGraph, structured data
5	`@latimer-woods-tech/crm`	Lead tracking, conversion events, customer view
5	`@latimer-woods-tech/compliance`	TCPA/FDCPA consent and suppression management
5	`@latimer-woods-tech/admin`	Admin Hono router: users, events, health, suspend

Design Principles

No process.env — every package uses Cloudflare Worker bindings (env.VAR / c.env.VAR)
No Node.js built-ins — no fs, path, crypto, Buffer
ESM only — no CommonJS require()
Zero any in public APIs — TypeScript strict throughout
Explicit error handling — no raw fetch without error checking