Ryan Hernalsteen
AI & Data Architect · Builder · Photographer
Father of two daughters. Based in Michigan.
Currently at Perficient as Senior Solutions Architect. My Career → About me →
Latest posts All posts →
- Jun 2026 6 min read Getting More from Claude Code Building with AI
- Jun 2026 3 min read Building Current Recovery Score: My First iOS App iOS Apps
- Apr 2026 4 min read Building the Health Dashboard No App Would Give Me Building with AI
- Feb 2026 6 min read Building a Second Brain That Understands How You Work Building with AI
- Aug 2025 2 min read Planning for Identity Resolution in Salesforce Data Cloud Salesforce
What I'm building All projects →
- Personal Health Data Warehouse Python + SQLite system pulling from Apple Watch, iPhone, and a medical device. 18 months of data, 16,000+ metrics, calibrated against a clinical baseline.
- Second Brain Six interconnected Notion databases spanning goals, projects, people, habits, and daily logs. A custom Claude Code skill turns brain dumps into structured records — no manual entry.
- This Website Designed and built with Claude Code from the ground up. Astro, Cloudflare Pages, and a structured memory system that persists context across sessions.
Photography View all →