02 About

About

One year, hundreds of builds, a few of them public. Here's the short version.

I like the part of the work where a vague idea becomes something you can actually click.

I'm Dani, a software engineer in Heeg, a small town in Friesland. I build AI tools that run on your own machine — Go binaries, browsers with no framework in the way, and the plumbing that keeps both honest.

About a year ago I started building in public-ish: hundreds of projects since, most of them private, a handful that people actually found. EVOLV is the one that mattered — a workspace that rewrites its own interface while it runs, built with Aaron Wise, and the first thing I've made that went further than I could push it alone.

Alongside the tools I ran fleets of VPSs, built multi-agent swarms that hand work to each other, and wrote a book. When a question gets under my skin I write it down instead of shipping it; one of those became a cosmology preprint, with the code to check every number.

100s
builds this year
23
stars on EVOLV
492
hhr-ai downloads, 30 days
1
book published

What I actually work with

  • Go
  • JavaScript
  • Python
  • Node.js
  • WebSocket
  • Linux
  • VPS / infra
  • LLM tooling
  • TeX
  • HTML & CSS

How I work

  • Local-first by defaultYour machine, your files, your keys. If it needs an account to be useful, it's probably the wrong shape.
  • Ship the ugly versionA working thing on localhost beats a beautiful thing in a branch.
  • Show the seamsEVOLV keeps a ledger of its own mutations. Tools should be honest about what they changed.