DECK — DECA practice app
A study app with practice tests, a question bank, event vocabulary, daily roleplays, and progress tracking.
Open project page →TypeScript · Next.js · Python · SupabaseIn development
Developer in progress
Hello, I'm Stefan.
I'm learning to build for the web. This is where I keep track of what I've made, what I'm figuring out, and what comes next.
See what I'm working on ↓Last updated September 2026
01 / Work
Things I'm making
Hydra robotic arm controls
A Raspberry Pi and Arduino control system for a cable-driven arm with calibration, encoder feedback, clutch control, and safety monitoring.
Open project page →Python · Arduino / C++ · Raspberry PiIn development
Stackwise tolerance calculator
A browser-based engineering tool for tolerance stacks, simulation, design guidance, saved projects, and report exports.
Open project page →TypeScript · Next.js · Engineering mathIn development
Modular robotic arm
Research into a lower-cost arm whose software adapts motion and grasp planning to interchangeable hardware.
Open project page →Robotics · Machine learning · Mechanical designResearch phase
Click-beetle wooden hopper
A wooden mechanical hopper that translates the click beetle’s fast load, latch, and release motion into a physical prototype.
Open project page →Biomimicry · Mechanism design · Wood fabricationPrototype phase
Smart mirror
A two-way mirror with a hidden display for useful daily information, designed around an inexpensive and expandable computer.
Open project page →Single-board computers · Linux · Web dashboards · WoodworkingPlanning phase
Websites launched
02Personal portfolioThis website · 2026
Stackwise tolerance calculatorVisit website ↗Certifications
06Claude Certified ArchitectAnthropic
HubSpot Marketing CertificationHubSpot Academy
Rat Tickling CertificationPurdue University
Montana Bear Identification CertificationMontana Fish, Wildlife & Parks
Unicorn Hunter LicenseLicense credential
Ordained MinistryOrdination credential
Books published
01
Semiconductors: All About Them, I Guess?View on Amazon ↗02 / About
Starting small.
Paying attention.
I'm early in my development journey. I don't know everything yet, and that's the point—I like taking something unfamiliar apart until it makes sense.
Right now I'm focused on the web: learning how good interfaces are structured, how code becomes a working product, and how to make each project a little better than the last.
More about me and what I'm into ↗- Known
- C++, Java, TypeScript / JavaScript
- Learning
- Python, HTML, CSS, Node.js
- Using
- VS Code, Git, GitHub
- Interested in
- Useful software and thoughtful design
03 / Contact