My Work
Building tools for pilots and developers. Most work is live or open source. Here's what I ship.
CFIPros
https://cfipros.comACS-aligned study guides and training tools for pilots. AKTR analyzer, endorsement workflows, and logbook cleanup. Built for student pilots, CFIs, and flight schools.

Open Source Workflow
Spec-Flow
https://github.com/marcusgoll/Spec-FlowClaude Code workflow for spec-driven development. Documents how I plan features, write specs, ship code, and debrief work with AI support. Open source workflow kit for systematic development.
- • Slash command workflow (/specify, /plan, /implement, /ship)
- • Agent-based code review and QA automation
- • Spec-driven development with artifact tracking
- • GitHub Issues integration for roadmap management
Robinhood Trading Bot
https://github.com/marcusgoll/robinhood-algo-trading-botAlgorithmic trading bot for Robinhood. Fun side project exploring automated trading strategies, market data analysis, and risk management. Educational purposes only.
Python Trading Bot

Frazier Sports
https://fraziersports.comCustom eCommerce website built on WordPress with WooCommerce. Full product catalog, payment processing, and inventory management for sporting goods retail.
Want to collaborate?
I take on select projects involving training tools, aviation tech, or systematic development workflows. Reach out if you have something interesting.
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