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Show HN: Themis – Self-hosted AI code reviews with your own keys and models

A developer released Themis, an open-source, self-hosted tool for AI-powered code reviews that works with existing subscriptions like Codex and Claude. The project aims to provide configurable, cost-effective code review for indie developers and small teams.

read1 min views1 publishedJul 14, 2026

Hey HN,

I wasn't happy with the code review tools we use at work and on my side projects. Noisy, reviews in surface, expensive (overkill for sides). So since Gemini was getting sunsetted, I explored having my own.

As I am a cheap rat, this weekend I built Themis, that works with my Codex/Claude subscriptions (I understood "claude -p" is ok again in subscriptions).

I wanted it open-source so it can help other indie devs or small teams, self-hostable (or local), drawing from subs and mostly, configurable so it works well with your own repos.

No big ambitions nor 1 billion startup here, just fun (so please don't roast ahah). If it is useful to even a few people, that's already great.

Happy to have feedback (especially on distributing the app!)

Ps: 1st HN contrib, hope it's the right format

Comments URL: [https://news.ycombinator.com/item?id=48903007](https://news.ycombinator.com/item?id=48903007)

Points: 2

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