Studio · Who builds this · San Francisco
Solo studioOne engineer builds all of it.
No collective, no rotating contractors, no ghostwriters. Every app, every instrument in the Lab and every field note on this site is designed, built and signed by one person — with a public record of hands-on hardware and signal-processing work going back to 2017.
And it is checkable
Every field note carries a byline. The structured data on every page names the same person. The prior work is public and predates this site by years, so none of it has to be taken on trust — the links below go to the record, not to a profile page we control.

Engineering · Product · Design
Joshua Hrisko
Principal Engineer
San Francisco, CA
Leads architecture and shipping for MakerPortal’s iOS apps — on-device ML where possible (CoreML, ANE), Metal, SwiftUI craft, and transparent hybrid for agentic DSP. Has published hands-on hardware, sensor and signal-processing work at makersportal.com since 2017; the interactive instruments in the Lab come out of the same bench.
On-device AICoreML / ANESwiftUIMetalSensors & DSP
Open source · Studio
Code and public experiments live under the MakerPortal organization on GitHub.
github.com/makerportal ↗