Welcome to Larvitz Blog! I’m Christian, a Senior Consultant by day and FreeBSD enthusiast by night, with over 20 years in enterprise IT. Here I write about FreeBSD jails, PF firewalling, self-hosting, Linux system administration, and anything that’s cleanly engineered. Most articles are hands-on guides born from running my own infrastructure, from dual-stack networking and Ansible automation to hosting a Mastodon instance on FreeBSD.

Have a question or want to discuss something? Find me on the Fediverse at @Larvitz@burningboard.net. I’m always happy to chat!

#quadlets Articles

Sun 08 November 2026
Linux

A Read-Only AI Reviewer for Forgejo Pull Requests

A small Python service that reviews every pull request on my self-hosted Forgejo with an LLM, posts a summary and inline findings, and is not allowed to do anything else. The interesting part was not getting a model to comment on a diff. It was getting it to stop being confidently wrong about code it had never seen, and making sure a misbehaving or manipulated bot could not change a single line.