Building an Offline-First QR Check-In System
How I built a production-ready QR code check-in system using Cloudflare Workflows, offline-first iOS architecture, and smart merge protection to handle event check-ins without network connectivity.
Hey, I'm Devin 👋🏼
I'm a full stack developer at CACI, building FMV products for defense — currently focused on infrastructure as code.
Outside of work, I'm building a few things: Promoted, a nightlife platform for ambassador programs and guest list management; Vendora, a marketplace connecting vendors to event organizers; and Realty Pilot Suite, a tool for streamlining property management tasks.
Writing
Monitoring GolfNow Tee Times with Temporal.io
Building a resilient tee time monitoring system with Temporal workflows, multi-tenant database design, and automated notifications to catch last-minute golf course cancellations in competitive North Jersey markets.
Deploying Temporal with Podman Quadlets
A hands-on guide to deploying Temporal workflow orchestration using Podman Quadlets and systemd on Linux, covering multi-container setup, networking, SSL configuration, and production-ready security practices for edge and high-security environments.
Building an Email Drip Campaign with Temporal.io
Learn how to build a reliable, production-ready email drip campaign using Temporal.io for workflow orchestration, Spring Boot, and AWS SES—with automatic retries, durability, and clear workflow-as-code design.
Projects
Promoted
Nightlife's essential service to manage their promoter program, provide loyalty rewards, and drive more business
GolfNow Tee Time Monitor
Monitor tee time openings with Temporal workflows
Table On Us
Automated Restaurant Reservations in NYC
Temporal with Podman Quadlets
Deploy Temporal with Podman Quadlets