Projects

A decade of work on human–computer interaction — sensors, gestures, on-device ML, prototyping tools, and a long thread of native iOS/macOS engineering.

Featured six projects

Stitch Founding Engineer

Open-source, node-based prototyping tool for mobile-first interactions. In the lineage of Quartz Composer and Origami; with 3D, AR, and AI-assisted features.

SwiftUIPrototypingDesign Tools

ChromaSwift Open Source

A Swift package that brings Chroma's retrieval system to iOS and macOS — bridging its Rust core to Swift with local MLX embeddings and on-device storage. Built in collaboration with Chroma, a company I invest in.

SwiftOn-Device AIRetrieval

Roboflow iOS SDK — on-device object detection

Roboflow iOS SDK Special Project

Native Swift SDK for on-device object detection — wraps CoreML model loading, frame capture, and post-processing into a one-call API.

iOSCoreMLSDK

Asteroid — wiring camera, gesture-recognition, and 3D nodes together in the node graph

Asteroid Founding Engineer

A pre-seed macOS app for building ARKit experiences without writing code — node graph compiles to a runnable Xcode project. Two Product Hunt launches.

macOSARKitCoreML

AudioKit Founding Team

Open-source audio synthesis, processing, and analysis framework for iOS and macOS. Still active a decade later; thousands of apps shipped on top of it.

iOS / macOSAudioOpen Source

Project Soli — recognizing a hand and finger wiggling gesture via mm-wave radar

Project Soli Alpha Member

mm-wave radar gesture experiments as part of the Alpha Developer Program. A long thread of work on what radar could mean as a human-input modality.

RadarGestureResearch

Open Source code on GitHub

Rampart-CoreML (2026) — CoreML port of the Rampart PII-detection model.
TiktokenSwift (2025) — Swift bindings for OpenAI's tiktoken tokenizer via UniFFI; token counting for iOS/macOS apps.
Diffusion Demo (2025) — SwiftUI demos for Inception Labs' diffusion model.
3D Matrix Operation Visualizer (2024) — Real-time 3D transform demo in Swift — the math behind Stitch's 3D system.
Visual iMessage (2024) — What if Siri could describe images in an iMessage thread?
Eye-Gaze Cursor Control (2023) — Controlling a Mac cursor with eye gaze.
ASL Classifier (2020) — On-device American Sign Language detection with CoreML.
ESC10-CoreML (2018) — Open-source CoreML sound-classification model trained on the ESC10 dataset.
Touché Experiments (2018) — Interaction studies with a homemade swept-frequency capacitive sensor.
Gesture Recognition on iOS (2016) — Integrating the Gesture Recognition Toolkit into iOS apps.

Client Work product engineering for other teams

Meter VPN App (2023) — Native macOS app for Meter customers to access their VPN with a simple and friendly user experience.
Dusty Robotics iPad (2021-2022) — iPad software for Dusty's construction-robotics field layout system.
Tlon Pocket (2021-2022) — The first version of Pocket, an iOS chat app for Urbit.

Archived project pages: Peer-to-Peer Audio · Whistlr · Delay Tracker