2 Capital Letters

2 Capital Letters Newsletter

One real-world AI use case every Friday, straight to your phone via WhatsApp. Compact. Actionable. Free.

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Christoph Sauerborn working on a laptop in a bright workspace.
From daily work, not from a content calendar.
Join via WhatsApp

Join via WhatsApp

Every Friday at 08:00. One WhatsApp. One use case.

Christoph Sauerborn explaining an agent architecture on a projection screen.
Architecture
Christoph Sauerborn talking after a keynote.
Field questions
Christoph Sauerborn speaking in front of a slide with agent briefing notes.
Live demo
What you get

No hype. Just what works.

01

Every Friday at 08:00

One WhatsApp. One use case. Ready to apply on Monday.

02

One system per week

One workflow a week your team can put to use the same day.

03

For people who want AI to do real work

From solo freelancers to B2B teams. From the first use case to your own AI employee.

04

From the field

What works at Brixon. Tested. Validated. Real use cases.

Topics

What your team will actually use

AI employees

Agents I built this week

Real agents from my day-to-day work. What they do, how they're built, what they deliver.

Weekly
Operations

How to orchestrate, run, and scale agents

The discipline behind it. Patterns that work. Mistakes I've learned from.

Weekly
Tools & Stack

Which tools actually matter for AI employees

Claude Code, MCP, n8n, Copilot: what I use and why.

Weekly
Strategy

When an AI employee pays off

Engineer's thinking: where's the biggest lever? Which task first?

Weekly
Use Cases

Real numbers from Brixon projects

Where time was saved, quality held, and output actually went up.

Weekly
Behind the Scenes

Learnings, failures, real insights

What snagged this week. And what I learned from it.

Weekly
FAQ

Still have questions?

How often does the newsletter come out?

Every Friday. 08:00. On the dot.

How do I get it?

On WhatsApp, straight to your phone. One message a week.

What does it cost?

Nothing. 2 Capital Letters is free.

Can I unsubscribe?

Anytime. A short message is enough.

Why not just ask ChatGPT?

You could. But ChatGPT has no idea what actually worked in the field this week. I do, and I build the AI employees on top.

What happens to my data?

Your details stay with me. No sharing. GDPR-compliant.

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