Night & Day
One of the best things I've found about vibe coding is that it becomes cheaper to experiment. Certainly not free—if you've paid the price for Opus 4.5 usage beyond your included plan limits, you know...
Calvin Freitas
Engineering Leader
Calvin Freitas has been based in North Idaho since 2020 and previously lived in the front-range of Colorado and the Seattle area. By trade, he's a principal software engineer.
Cal has served in roles including Principal Front-End Engineer, Staff Engineer, and Engineering Manager.
Consulting & Contracting
Cal owns and operates Swarzy and provides his website consulting, contracting, and optimization skills to startups, SMBs, and enterprises. He worked at Amazon for ~9 years on Seller Central, Amazon UI, and the Amazon Detail Page.
In a recent project at Home Instead, he architected a major website migration to Next.js and Sanity CMS which resulted in improved leads and conversions.
Recent Blog Posts
Website migrated to Ruby on Rails 8
For most of the life of this blog (since 2008), it has been powered by WordPress. In olden days, I...
My Vite Starter
When I was most recently in the process of interviewing at the start of 2025, it became useful to...
Node.js 20, Yarn 4, and Next.js on Docker
I recently spent time updating a few Swarzy websites including Swarzy.com. (Yes, this is how I spent...
The new Verses for Life website
The new Verses for Life website is live! Memorize Bible verses from the Topical Memory System, Roman...