Hey, I'm Simon

Software engineer in Germany. I tinker with Linux, networking, home automation, and embedded systems — and write about what I figure out along the way.

GitHub Bluesky

Open Source

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hetzner-radar

Tracks the Hetzner server auction in real-time, helping you snag deals on dedicated hardware.

TypeScript

plundrio

Makes put.io work seamlessly with Sonarr/Radarr by speaking Transmission's RPC protocol.

Go

cowboy-ha

Brings Cowboy e-bike stats into Home Assistant — battery, range, trip data, and more.

Python

Recent Posts

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Feb 21, 2026

Tuning qBittorrent and WireGuard Throughput on NixOS

Squeezing more throughput out of qBittorrent in a WireGuard VPN namespace with BBR congestion control, TCP buffer tuning, and systemd tweaks.

nixosqbittorrenthomelabwireguard

Jan 26, 2026

Running iBGP Over WireGuard for DN42 and Beyond

Using iBGP over a WireGuard tunnel to automatically propagate DN42 routes from a VPS to the home network, replacing fragile static routes.

networkingbgpwireguardhomelabnixos

Jan 25, 2026

Monitoring the *arr Stack on NixOS

Setting up Prometheus and Loki monitoring for Radarr, Sonarr, and Prowlarr with Exportarr metrics and log-based alerting on NixOS.

homelabnixosprometheuslokimonitoring