Gavin Shrader's portfolio + blog - iOS engineering and web development.https://gavinshrader.com/https://gavinshrader.com/blog/wet-bulb-temperature-wbgt-apple-watch/https://gavinshrader.com/blog/wet-bulb-temperature-wbgt-apple-watch/Swelter now runs on Apple Watch: wet bulb temperature, WBGT heat risk, UV index, and weather for athletes at a glance, with watch face complications and Smart Stack widgets.Mon, 05 Oct 2026 01:00:00 GMThttps://gavinshrader.com/blog/swelter-app-launch/https://gavinshrader.com/blog/swelter-app-launch/Announcing Swelter, a brand new iOS app that shows how risky it is to be active outdoors right now. It shows WBGT, the standard heat stress index, computed on-device and powered by Apple Weather, with a best-window planner, widgets, charts, and heat alerts.Sat, 01 Aug 2026 18:00:00 GMThttps://gavinshrader.com/blog/semantic-search-playground/https://gavinshrader.com/blog/semantic-search-playground/A semantic search engine which runs entirely in the browser, built on a vectorized knowledge base of 42 machine learning concepts. A local transformer model embeds your query and ranks documents by meaning.Sun, 21 Jun 2026 21:00:00 GMThttps://gavinshrader.com/blog/the-end-of-technology/https://gavinshrader.com/blog/the-end-of-technology/A short story on a world set many years in the future. Reflections on the birth of a planetary superintelligence.Sat, 21 Mar 2026 19:00:00 GMThttps://gavinshrader.com/blog/ios-coordinator-architecture/https://gavinshrader.com/blog/ios-coordinator-architecture/A tutorial on how to implement the coordinator architecture pattern, using UIKit as a base for your app's navigation, and SwiftUI for your UI components.Fri, 13 Mar 2026 21:30:00 GMThttps://gavinshrader.com/blog/xcode-dev-scheme/https://gavinshrader.com/blog/xcode-dev-scheme/How to set up a DEV scheme so you can run your App Store and development builds side by side without overwriting each other or mixing data.Sun, 22 Feb 2026 20:00:00 GMThttps://gavinshrader.com/blog/page-speed-optimization/https://gavinshrader.com/blog/page-speed-optimization/Moving JavaScript to a Web Worker to build complex animations without tanking the main thread's performance.Wed, 18 Feb 2026 05:30:00 GMThttps://gavinshrader.com/blog/how-i-built-this-website/https://gavinshrader.com/blog/how-i-built-this-website/A deep dive on the tech stack and the architecture behind how this website and blog works.Mon, 16 Feb 2026 08:00:00 GMThttps://gavinshrader.com/blog/neural-evolution-sim/https://gavinshrader.com/blog/neural-evolution-sim/An interactive simulation where neural networks evolve and gain intelligence over time. Watch AI creatures learn through genetic algorithms and reinforcement learning.Sun, 01 Feb 2026 14:00:00 GMThttps://gavinshrader.com/blog/mini-hab-app-launch/https://gavinshrader.com/blog/mini-hab-app-launch/Announcing my brand new iOS app. A daily productivity app with iCloud sync, widgets, reminders, and a historical heatmap chart. Built to be fast, private, and minimalist.Sun, 11 Jan 2026 23:00:00 GMT