Bernhard Keprt

My story · 25 years of building software

I build agentic software systems that have to survive production.

I'm Bernhard Keprt, cofounder and CTO of appointmed. AgenticPrime is where I share what changes when agents stop being autocomplete and start doing real engineering work.

10 years bootstrapped · €2M ARR · ~3,500 customers · 100% agentic

The long version

The technology changed quickly. The responsibility never did.

25 years

Before the agents

I have spent 25 years building software. The tools have changed often, but the responsibility has not. Someone still has to decide what is worth building, understand the constraints, and own what reaches production.

That is the perspective I brought to agentic engineering. Agents are a powerful new way to make software, but speed only matters when the surrounding judgment is strong enough to use it well.

appointmed

The production test

appointmed is where those decisions became impossible to treat as theory. We built a profitable, bootstrapped healthcare SaaS that now serves roughly 3,500 customers and generates about €2M ARR.

Real people depend on the product in their daily work. The code carries years of decisions, integrations, customer expectations, and release risk. Every new workflow has to survive that reality.

100% agentic

The operating shift

Today, AI agents write 100% of our production code. That did not make engineering disappear. It moved the scarce work toward context, architecture, verification, review depth, and release judgment.

Agents do the implementation work. Humans still own product direction, business impact, and what happens when a change is wrong. That distinction is the foundation of our operating model.

The build log

Why AgenticPrime exists

AgenticPrime is the public build log for that operating shift. I share the developer tools, workflows, prompts, checks, and mistakes that survive contact with a real production codebase.

The point is not to make agents look impressive. It is to help software teams use them responsibly, with enough context and verification to ship work they can stand behind.

Blueprint sketch showing production learnings flowing into AgenticPrime tools, workflows, and field notes
The loop: production pressure becomes tools, workflows, checks, and field notes.

The short version

Agents can write every line. Humans still own what ships, why it exists, and what happens when it is wrong.

Start here

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