(Never seen a now page before? Here is what it’s all about.)

Location: Frankfurt

I’m currently living in Frankfurt. I’m building a social life there, but I’m also traveling a bunch and local interactions remain … limited. I’m attending meetups here and there around entrepreneurship or other things that interest me, regularly show up at the local CCC and otherwise organize the Frankfurt Rationality Meetups happening about once a month.

My own Startup: Kolai

Almost all of my available time and energy is currently going into my own startup, Kolai - we are building modern knowledge management software, in particular permission-aware and knowledge-graph enhanced enterprise search and highlighting contextually relevant information.

Our goal was to learn as much as we can, and for the experience to have been worth it regardless of ultimate success. I think our chance for success is substantially higher than it was last year, but I’d still ultimately bet on our startup failing simply due to chance.

We have paying customers for a while now, so it feels like we’re in-between ‘startup’ and ‘scale-up’ currently - see Lean Startup for more on this terminology. We had some funding from EXIST for the first year, and our current runway is still close to a year (for us founders).

Technically I’m CTO, but everything technical, in particular the development, architecture, and customer deployments are in my hands. I have personnel responsibility insofar as we sometimes hire freelancers for frontend or other development tasks, receiving tasks and close guidance from me.

(Active?) Side Projects

Vibe coding has a number of relevant downsides - faster progress on side projects is a big upside. In my day-to-day I do more Agentic Engineering and live closer to the code, but for the following I haven’t looked over all of the code itself:

  • ansible-aom: tui monitor inspired by nom but for ansible. Mostly works with some bugs here and there. Not yet fully open-source. Idea, initial spec etc come from a friend, not me.

  • beancount-importer: tui for reading my banks CSV’s and converting them to beancount transactions based on configurable rules or manual classification. Actually a rewrite more focused on agentic engineering, since the original implementation turned into an untested fully vibe-coded barely-functional mess.

  • UnifestBestellBot: A project I’m maintaining for a couple years now, with small changes for each unifest. Agents enabled a quick and functional rewrite, as well as adding old feature requests in both python & rust.

  • citation-velocity: Simple CLI to estimate the answer to ‘which paper was cited most often in year X’. Somewhat surprising results.

  • configs: I’ve rewritten my NixOS configs completely to make them more modular, and did a similar-ish rewrite to the ansible part.

Blogging

After … a bit of a break, I’ve started writing posts again, in particular sailing. We’ll have to see if I’ll do it regularly again - no promises. it’ll be irregular at best, and for sure less than the 1/month it was a couple years ago.

You might also be interested in my about page.

Edit: last updated on 2026-05-31