I’ve just open-sourced hostmap : a small read-only Linux architecture mapper for turning a server into a safe, shareable reviewer bundle. Repo: https://github.com/magrathean-uk/hostmap The idea came from a real VPS review. I wanted something that could quickly answer: What services are running? What owns each port? Which systemd units and timers matter? What Docker/Compose/Kubernetes pieces exist? Which ingress layers are in play: nginx, Caddy, Apache, Traefik, HAProxy, Cloudflare Tunnel, VPNs? Where are the Git repos, CI files, deploy scripts, monitoring, backups, and runtimes? But I also wanted it to be safe by default. So hostmap is read-only, avoids secrets, redacts secret-looking config values, skips heavy paths like .git , node_modules , Docker storage, databases, caches, journals, and produces Markdown/JSON plus a zip you can hand to another engineer or an AI reviewer. It also includes a reusable Codex skill and prompts so people can map their own machines without baking private machine-specific facts into the public tool. This is very much a first public version, but it already covers a useful base: systemd, cron, listeners, Docker/Compose, Podman, k8s/k3s, ingress tooling, GitHub/GitLab/Gitea-style CI, package/runtime versions, monitoring, backups, and directory-only filesystem maps. If you run mixed Linux boxes, VPSs, side projects, customer servers, or inherited infra, this is meant to give you a clean first pass before the “wait, what is actually running here?” phase gets messy. Feedback and detector ideas welcome. submitted by /u/Pathfinder-electron
Originally posted by u/Pathfinder-electron on r/ClaudeCode