Categories are broad thematic groupings (higher-level than tools, skills, or domains) used to keep writing and pages navigable across the site; for how they differ from the other taxonomies and how to use them well, read Introducing Categories, then use the alphabetical listing below to browse any category.
- Algorithmic Trading and Financial Engineering Projects building automated trading systems, quantitative models, and financial data infrastructure. 5
- Building Ventures from Scratch Projects founding and building companies, products, and platforms from zero to market. 65
- Cloud Architecture and Infrastructure Projects designing, migrating, and operating cloud-native infrastructure on AWS and related platforms. 55
- Community and Creative Projects made for and with others — speaker systems for local spaces, music creation, and the work that happens when craft serves a community rather than a client. 24
- Community, Education, and Ecosystem Projects building communities, educational programs, and ecosystem initiatives. 8
- Consulting and Advisory Engagements advising teams and organizations on strategy, architecture, and technical execution. 124
- Data Engineering and Big Data Projects building data pipelines, warehouses, lakes, and large-scale analytics infrastructure. 52
- Defense, Government, and Federal Work Projects operating under federal compliance requirements, government contracts, and defense contexts. 7
- Fitness and Movement Physical practices — weightlifting, racquetball, aikido — and what they reveal about discipline, adaptation, presence, and the connection between body and mind. 2
- Food and Exploration The pursuit of good food, interesting places, and the people and cultures encountered along the way. 1
- Machine Learning and Data Science Projects involving predictive modeling, ML pipelines, feature engineering, and data-driven decision systems. 18
- Making and Craft Projects where hands meet materials — woodworking, electronics, mechanical assembly, and the satisfaction of building something that functions in the physical world. 19
- Making the House Smarter Projects wiring up the home with sensors, automation, lighting, audio, and climate systems — learning IoT and embedded hardware by living inside it. 8
- Mobile Apps, Games, and Digital Products Projects building iOS and Android apps, games, and consumer digital products. 18
- Personal Data and Finance Applying data engineering and systems thinking to personal life — automated financial infrastructure, multi-entity accounting, and the quantified self. 5
- Personal Life and Practice Deliberate practices, shaping experiences, and the parts of life that resist categorization but leave a mark — incense, aikido, events, and encounters that changed how the world gets approached. 65
- Radio and Communication Projects exploring radio systems, ham radio, LoRa, Meshtastic, RC control, and the infrastructure of communication at the edge of the network. 4
- Real Estate and Investment Projects involving real estate acquisition, syndication, and investment analysis. 20
- Robotics and Teaching Projects building robots, mentoring students through FIRST Robotics, and creating the tools and environments that make hands-on learning possible. 18
- Study and Philosophy Engagement with philosophy, religion, poetry, and wisdom traditions as practical tools for living — not abstract decoration, but working frameworks for meaning, ethics, and equanimity. 2
- The Homelab Projects building and operating personal infrastructure — servers, clusters, networks, and the experiments that run on them. 9