/author
Ethan Ludwig
I build InferHaven, a private AI coding stack you run on hardware you control, and CodeTrain, an AI tutor that plans lessons and grades your code but never writes it for you. Solo, in the open, and the source for Core is public.
I write here about the things that turned out to be harder than they looked: bugs a test cannot see, why code review does not survive being reproduced, and what it actually costs to keep inference off someone else's servers. Mostly first-hand, mostly with the numbers attached.
More at about InferHaven, or on LinkedIn. I answer email at lighthouse@inferhaven.com.
Posts
- The bug your test cannot see
- The review you can't reproduce
- How I built a tutor that refuses to write your code
- CodeTrain: the AI that won't write your code
- Privacy as the baseline, not the upsell
- Building haven bench in the open, and the flaky CI ghost it flushed out
- InferHaven's source code is live!
- The private AI coding box: why not just use XYZ?
- Why InferHaven runs your AI offline by default