Technologist · Builder · Pilot
Daniel
Keller
25+ years building tech products. Currently exploring GenAI-native development, longevity optimization, and flying across Europe in a Cirrus SR22T.
Product & Tech
Side projects like SortFlex and NutriSpan, GenAI-native development with agentic workflows, and hands-on building across identity verification, fintech, and digital marketplaces.
Leadership
Lessons from 25+ years of tech leadership — strategy, org design, execution, and the principles that drive high-performing teams across four exits.
Longevity
Optimizing health span through six pillars — sleep, exercise, nutrition, mental health, biohacking, and risk avoidance.
Flying
A decade of private flying — EASA & FAA PPL, Instrument Rating, cockpit GoPro footage, and adventures across Europe in a Cirrus SR22T based out of Schönhagen.
25+
Years in Tech
4
Exits
$1.6B+
Exit Value
10+
Years Flying
IR
Instrument Rated
Latest Updates
Wiring Gemma 4 Into Claude Code — A Practical Local-Plus-Cloud Setup
A step-by-step guide to running Gemma 4 locally via LM Studio and calling it from inside a Claude Code session — for offline reasoning, batch processing, privacy-sensitive data, and zero-cost first-pass drafts that hand off to Claude when you need the heavy hitter.
Read moreClaude Code Ultraplan — Planning Moves to the Cloud
Anthropic just shipped a hidden Claude Code feature called Ultraplan. Instead of planning locally, your session is offloaded to a multi-agent Opus 4.6 swarm in the cloud that builds a richer, faster, more structured plan — and then teleports it back to your terminal for execution.
Read moreLPV vs LNAV/VNAV — Understanding RNAV Approach Minimums
A complete breakdown of the differences between LPV and LNAV/VNAV approaches, including WAAS, SBAS requirements, decision altitudes, and when to use each type.
Read moreMy Favourite Claude MCPs for macOS
A living list of the Model Context Protocol servers I actually use every day on my Mac — what they do, why they earned a spot in my setup, and how to install each one in under five minutes.
Read moreImmersive Bold Targets — Why Incrementalism Kills Innovation
How safe, incremental goals erode competitive advantage and why OKRs done right force the creative leaps that move businesses forward.
Read moreA Fleet of Fast Boats Over a Big Ship
Why small autonomous teams outperform large organizations -- lessons from Microsoft, four exits, and 25 years of building tech companies.
Read more