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THE BUILDING PRIMED ARCHIVE

Building Primed

Behind the scenes on our LLM-first architecture, solo founder journey, and building an adaptive endurance engine.

10 articles in Building Primed

Editorial artwork featuring a dark sphere with glowing constellation nodes framed by smoked glass data screens on stone.

Building Primed7 min read

What If the Smartest Part of an AI Coach Never Spoke?

We have early access to TypeSafe's new Jev model. It doesn't chat, write training plans or explain itself, which is exactly why I think it could be interesting for Primed.

Editorial illustration of screenless wearable objects on a quiet bedside shelf.

Building Primed8 min read

IFA 2026: Fitness Tech Is Moving Beyond the Screen

Screenless bands, sensing necklaces and bedside radar point to a new fitness challenge: making sense of health data across devices, training and everyday life.

Editorial illustration of a compass resting on stone beside technical running fabric.

Building Primed7 min read

Why Your AI Coach Shouldn't Change Personality Mid-Season

An AI coach should adapt to the athlete without changing its identity, evidence standards or safety boundaries. New robot-persona research shows why that distinction matters.

Editorial illustration of a runner stepping onto an open waterfront path at dawn.

Building Primed7 min read

Primed is live on the App Store

After nearly two years of building and testing, Primed is now available on iPhone, iPad and Mac. Here is what I have been trying to build, what it does today, and where it still needs to improve.

Editorial illustration of a runner following a woodland path into morning light.

Building Primed5 min read

Primed has changed direction

Primed has shifted focus over the past few months, moving away from its original positioning as a productivity tool and towards something much more specific. It is now being built as an AI system for endurance training.

Editorial illustration of layered smoked glass framing a single pale stone.

Building Primed7 min read

The Next Step: From LLM-First to Context-First

When we first started building Primed, our focus was on one idea: make the language model the heart of the system. But as AI systems became more capable and complex, prompts weren't enough. That's where context engineering comes in.

Editorial illustration comparing an older keyboard and paper with a contemporary laptop.

Building Primed6 min read

Starting Up Then and Now: 20 Years of Change

Twenty years ago I co-founded my first startup, Recommendation Ventures. Out of that came Scouta, a personalised media recommendation app that was ahead of its time. Looking back at how the startup landscape has been reshaped by technology, capital, and now AI.

Editorial illustration of a central sphere surrounded by precision tools and paper.

Building Primed8 min read

Our App's AI: A Deep Dive into the "LLM-First" Strategy with Primed

At its core, Primed operates on a fascinating and powerful principle: an LLM-first strategy. Instead of using a Large Language Model as just a feature, the app puts it in the driver's seat — making its own decisions about how to best handle your training requests.

Editorial illustration of black and ivory Go stones on a dark wooden board.

Building Primed4 min read

The Story Behind the Name: Primed

When I started building Primed, I wanted a name that captured both the creativity of artificial intelligence and the sense of being ready for what's next. The inspiration came from one of the most famous moments in AI history: Move 37 by AlphaGo.

Editorial illustration of a graphite laptop and notebook with a bicycle in the background.

Building Primed5 min read

Behind the Build: Why I Created Primed (and What I've Learned So Far)

About six months ago, I started a side project in my spare time. Not to launch a new company, but to go deeper into something I believe is going to reshape how we work: AI.

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Primed Coach conversation about heavy legs after a long ride, recovery and today's training.
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