RONNIERUCKER

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Designer, Builder and Entrepreneur. Integrating AI, finance and engineering.

7+
Years Trading
10+
Years Building
SOFTWARE DEVDERIVATIVES TRADINGPCB DESIGNRUSTFINTECHMATLABAI / MLAUTONOMOUS DRONESREACTPYTHONARBITRAGEAEROSPACE3D PRINTINGENTREPRENEURSHIPSOFTWARE DEVDERIVATIVES TRADINGPCB DESIGNRUSTFINTECHMATLABAI / MLAUTONOMOUS DRONESREACTPYTHONARBITRAGEAEROSPACE3D PRINTINGENTREPRENEURSHIP

// 01 — PROJECTS

Things I've Built

Arbitrage Contract Engine
Complete
💰 Fintech

Arbitrage Contract Engine

Rust-based engine that monitors contracts in real time, surfaces micro price differences between markets, and flags arbitrage opportunities before they close.

RustArbitrageTradingAlgorithmsFinance
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Local PCB AI Assistant
Complete
Electronics

Local PCB AI Assistant

A custom PCB-native AI chat assistant trained on personal workflows and running entirely offline — no cloud, no API calls. Built to automate repetitive tasks end-to-end.

PCBLocal LLMEmbeddedPythonAI/ML
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Freelance Web Projects
WIP
🖥 Web / UI

Freelance Web Projects

Websites and web apps for restaurants, small businesses, and independent clients — full pipeline from design to deployment.

ReactNext.jsJavaScriptHTML/CSSFreelance
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3D Printing Workshop
WIP
🖨 3D Printing

3D Printing Workshop

Broad range of FDM projects — household gadgets, custom tooling, and industrial-grade vehicle parts and machinery components built to spec.

FDMCADIndustrialPrototypingHardware
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// 02 — ABOUT

Who's Behind the Bench?

Ronnie Rucker

Ronnie Rucker

Software developer, derivatives trader, and aerospace engineer — I find the most interesting problems at the intersection of disciplines. I've built businesses ranging from democratizing options trading to freelance services for small businesses, and written arbitrage engines in Rust, designed custom PCBs, and 3D printed industrial-grade parts along the way.

By day I design electrical networks and autonomous systems in aerospace. Outside of that I'm trading derivatives, building fintech tools, and running whatever project has my attention.

This portfolio is a snapshot of what I've shipped — some still in progress, some running in production, all built to solve a real problem.

Daily Toolchain

PythonRustReactTypeScriptNext.jsTailwindMATLABPCB DesignSupabaseAI/MLLinuxDockerGitCADREST APIsSQL

Areas of Obsession

Fintech & Trading

Founder of The Pit Technology — converting options and futures into accessible bet-like contracts. 6+ years trading stocks, options, futures, and crypto.

Hardware & PCB

Custom PCB design, CNC machining, and embedded systems. Built a gyroscope drone test rig and a fully local AI assistant running on bare metal.

Software

Python, Rust, TypeScript — from arbitrage engines and voice AI to full-stack web apps. If there's a problem, there's a program for it.

Web & UI

Freelance websites for restaurants and small businesses, plus my own projects. React, Next.js, Tailwind from design to deployment.

Aerospace Engineering

Software developer and electrical engineer at a large aerospace company — electrical network design, process development, and systems engineering.

3D Printing

FDM printing from small household gadgets all the way to industrial-grade vehicle parts and machinery. If it can be modeled, it can be printed.

// 03 — BLOG

Field Notes

All posts
FEATURED

Building a Voron 2.4: A Month of Screaming at Belts

An honest account of building a CoreXY printer from scratch — including all the mistakes, re-dos, and the moment it finally printed a perfect cube at 300mm/s.

3D PrintingKlipperBuild Log
Jul 15, 202612 min read
Read
FEATURED

Why I Rewrote My Firmware in Rust (And Why You Should Too)

After years of fighting C++ footguns on microcontrollers, I gave Rust a shot. Here&apos;s what the transition looked like and why I'm never going back.

RustEmbeddedFirmware
Jun 28, 20268 min read
Read

Your First PCB in KiCad: From Schematic to Fab

A hands-on guide to going from zero to a real, orderable PCB using KiCad. No EE degree required — just curiosity and a willingness to re-order a board three times.

Jun 1, 2026

Building a Design System With Tailwind v4 — What Changed

Tailwind v4 dropped and I rebuilt my component library from scratch. Here's a breakdown of the new @theme API, CSS variables, and what to watch out for.

May 12, 2026

PID-Controlled Filament Dry Box — Because Soggy PLA Is a Crime

Built a proper temperature-controlled filament enclosure with a Peltier element and ATmega PID controller. Here's the schematic, code, and lessons learned.

Apr 20, 2026