Janmeppe.com 👋

Why do things always take longer than we think?

People love copying Toyota.

Last Friday was great.

I recently read the book How to Decide by Annie Duke.

At work, we host a lot of inference endpoints and for that we use Sagemaker.

The cache as a product is a product category of its own.

Every once in a while you (or your team) will screw up.

I thought it would be nice to document how I use AI right now, as of December 2025.

I completed Advent of Code 2025!

When in doubt, always try to batch your operations.

I return time and time and time again to John Oosterhout’s timeless advice.