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 × AI
Agentic development patterns, side projects like SortFlex and NutriSpan, and notes from the frontier of AI-native product building - plus 25 years of lessons from shipping and scaling tech companies.
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
The Last Bottleneck - Brains, Bodies, and Memory
One person can now build what used to take a team of fifty. Here's the tectonic shift - and what I'm already seeing in my own work with AI agents, orchestration frameworks, and persistent memory layers.
Read moreThe 15 MCPs & Skills That Supercharge My Claude Code Setup
The most important MCP servers and Claude Code skills I use daily to boost agentic AI productivity - what they do, why they matter, and copy-paste install instructions for each one.
Read moreThe Skills Framework - From Vibe Coding to Production-Grade Agentic Engineering
Why Anthropic's Agent Skills and Addy Osmani's skills framework are the missing discipline layer for serious AI-assisted software engineering - and how they compare to GitHub's Spec Kit.
Read moreWiring 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 more