At sufficient scale everything fails all the time, and the only real feature is being able to watch it happen.

_{— me, to a 🦆}

I work on the metric backend of Checkmk, its data backend for OpenTelemetry metrics that lets it monitor applications, not just infrastructure.
Before that I was at SAP, building the CI/CD infrastructure for HANA (their in-memory database): a graph-based task execution framework running on ~2000 compute nodes spread across multiple cloud providers and regions.

since 2021            csshW: broadcast your keystrokes to all your SSH sessions (successor: cssh-rs)
PyConDE '25          🎤 Rustifying Python: what's worth moving to Rust, and what will go wrong

2026-08-10 10:42 UTC  Checkmk/checkmk metric-backend(custom-query): show service name…
(today)               Checkmk/checkmk _{443 commits}

2026-08-10 10:33 UTC  Checkmk/checkmk igloo: size the graph burger menu with CSS anchor…
(today)               Checkmk/checkmk _{443 commits}

2026-08-10 04:25 UTC  whme/whme       Include the profile repo in recent activity (#63)
(today)               whme/whme       _{46 commits · 46 pull requests · 9 issues}

2026-08-08 05:42 UTC  whme/whme       Add a PowerShell icon to the language legend (#62)
(last week)           whme/whme       _{46 commits · 46 pull requests · 9 issues}

_{Last 30 days}

Lua 39.5% (7.3k) · Python 25.6% (4.7k) · TypeScript 13.9% (2.6k) · Vue 10.7% (2k) · Other 10.3% (1.9k)

_{All time}

JavaScript 36.3% (113k) · Python 22.0% (68.6k) · TypeScript 12.5% (39k) · Rust 11.3% (35.3k) · Vue 9.6% (29.9k) · Other 8.3% (25.8k)

_{Last updated 2026-08-10 14:33 UTC.}

_{Everything above refreshes every few hours via a small workflow. Here's how it's computed.
The 🦆 is maintained by hand.}