max ronner

Infrastructure & agent systems

Infrastructure & agent systems for teams that outgrew the defaults.

2 live products on a self-hosted NixOS/Kubernetes fleet.
Previously reduced a 66,000-line platform to its durable core and shipped semantic retrieval the next day.

I build self-hosted platforms and AI agent infrastructure — and the APIs that agents consume. Then I make them boring to operate.

max@ronner.dev
2 live products: JobFilter.ai, RentFree.site 8 posts published
Max Ronner GitHub / Codeberg

Selected work

  1. JobFilter.ai active

    Pivoted from a full career platform to a focused API; semantic retrieval shipped the next day.

    Public-job corpus API for agents: structured JSON only, source attribution, tokens scoped to jobs:read. In July I deleted 66,000 lines and kept the layer that proved durable.

    the decision tree jobfilter.ai
  2. Agent permission model published

    Replaced runtime approval dialogs with a build-time proof.

    Permissions for AI agents as a build-time proof instead of a runtime habit: capabilities → scopes → profiles in home-manager. nixos-rebuild fails naming unknown capabilities before anything runs — the sandbox profile gets a read-only project and four tools.

    the post
  3. Cluster & build farm running

    Self-hosted deploy pipeline that ships this site from actual hardware.

    2-node Kubernetes on mini-PCs, a Nix build farm across it, Flux image automation, everything versioned. Parallel rolls once hit memory pressure mid-deploy; rolls are sequential now — slower, deliberately.

    the post

If you're building agent infrastructure or self-hosting critical systems, describe the failure mode, not the stack.

max@ronner.dev