Hal Mueller
I'm a software developer, sailor, and musician in Seattle, Washington. For the last few years, my technical work has been mainly in the Apple ecosystem, with forays into Python to build supporting databases. I've previously been a research programmer for local, regional, and global environmental simulations, and created a very early global shipping tracker. Most of my personal projects have a geographic data component or maritime connection.
Currently I'm working on some projects for Apple's Vision Pro headset. I've architected projects that used AIS data feeds, Bluetooth LE, and MapServer, targeting Mac, iOS, and web. I have taught macOS and iOS development in Swift and in Objective-C at the University of Washington.
Find me:
Github: https://github.com/halmueller
LinkedIn: https://www.linkedin.com/in/halmueller/
Personal projects on the Apple App Store
History Pointer: National Register of Historic Places historypointer.com
Recent talks/presentations:
Using LLMs to enhance your FOSS4 geodata workflow, CUGOS Fall Fling (FOSS4G conference), University of Washington, November 2025.
Vision Pro development: one year in, Seattle XCoders, April 2025.
Webscraping Geospatial Data with Python/Beautiful Soup, tutorial for Maptime Seattle, May 2024.
© 2026 Hal Mueller