Active developmentLive web app · pre-launch
Longitudinal behavioral health tracking: mood, sleep, stress, symptoms, and routines as structured time-series data.
- Next.js 15
- TypeScript
- Supabase (Auth · Postgres · RLS)
All work
Startup · company formation in progress
HeartWire
HeartWire is my health-tech startup. Its products turn behavior, symptoms, and study into structured records. Each page states what is built, what is measured, and what the product does not claim.
- Active developmentTested with 10 users over ~1 month
GI symptom, meal, and context logging with per-user trigger analysis.
- Next.js
- TypeScript
- Supabase (Auth · Postgres · RLS)
- Active developmentCatalog integrity audit pending
HeartWire’s study app: a structured catalog of courses, resources, and levelled project ideas across engineering domains.
- Next.js
- TypeScript
- Prisma
- PrototypeUnder reconstruction · links withheld until rebuilt
Structured longitudinal documentation of chronic skin conditions: photos time-indexed against symptoms, medication, and environment.
- Next.js
- TypeScript
- PWA
- ConceptPlanned — nothing built yet
A planned HeartWire product: a faster feedback layer on top of continuous glucose monitor data.
Hardware, devices, models
Engineering
Physical builds and computational models: embedded firmware, mechanical design, and physics you can re-run.
- CompletedCourse project · functional demo
Arduino firmware for a 4-servo arm: colour sorting, handing an object to the arm, a proximity safety stop, and a closed-form inverse-kinematics solver.
- Arduino Uno (C/C++)
- Servo control
- Colour sensing (LDR + RGB LED)
- PrototypeFEA below safety target · parametric rebuild done · print pending
A 3D-printable, modular knee brace: snap-fit hinges, swappable connectors, and frames rebuilt as a parametric CAD model.
- SolidWorks
- SolidWorks Simulation (static FEA)
- Fusion 360 (parametric)
- CompletedPhysiology for Engineers I & II · live on GitHub Pages
Seven physiology systems modelled as differential equations in MATLAB/Simulink, then rebuilt as interactive browser simulations — from cardiac pressure–volume loops to Hodgkin–Huxley action potentials.
- MATLAB
- Simulink
- JavaScript
- Active developmentLive on GitHub Pages
Interactive, parameter-driven models for five biomedical engineering courses — the governing equation and a live plot on the same page.
- HTML
- JavaScript
- Chart.js
Case studies
Research
Device teardowns, stakeholder interviews, and literature review — the analysis side of the engineering work.
- ResearchCase study
Reverse-engineering a Class II reverse shoulder arthroplasty system end to end.
- Biomechanics
- Materials (Ti-6Al-4V, porous titanium, crosslinked UHMWPE)
- FDA 510(k)
- Research12 interviews · 8 physicians
Interviews with 12 healthcare professionals on where engineering fails clinicians, and what they actually need.
- Qualitative research
- Stakeholder interviews
- Systems engineering
- ResearchSystematic review · 11 studies
A PROSPERO-registered systematic review of material degradation in cobalt-chromium dental prostheses.
- Systematic review
- PRISMA 2020
- PubMed / Scopus / Web of Science
Personal tooling
Systems
JonnyJr, the infrastructure I built for my own work: an agent bench and an Obsidian second brain. Not a product — it’s judged on whether it changes how I work.
- In useContinuously updated · agent evals not yet graded
My personal tooling: an agent bench of Claude skill specs with explicit refusal conditions, plus an Obsidian second brain.
- Claude Code Skills (SKILL.md)
- Claude API · Managed Agents
- Python