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 2021csshW: 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 04:18 UTCwhme/whmeInclude the profile repo in recent activity
(today)whme/whme_{45 commits · 46 pull requests · 9 issues}

2026-08-08 05:42 UTCwhme/whmeAdd a PowerShell icon to the language legend (#62)
(last week)whme/whme_{45 commits · 46 pull requests · 9 issues}

2026-08-07 13:31 UTCCheckmk/checkmkmetric-backend: show the saved metric without…
(last week)Checkmk/checkmk_{440 commits}

2026-08-07 13:31 UTCCheckmk/checkmkmetric-backend: echo attribute suggestions without…
(last week)Checkmk/checkmk_{440 commits}

_{Last 30 days}

Lua 38.9% (6.8k) · Python 27.0% (4.7k) · TypeScript 14.4% (2.5k) · Vue 10.7% (1.9k) · PowerShell 5.1% (891) · Other 3.9% (688)

_{All time}

JavaScript 36.4% (113k) · Python 22.1% (68.6k) · TypeScript 12.5% (39k) · Rust 11.4% (35.3k) · Vue 9.6% (29.8k) · Other 8.1% (25k)

_{Last updated 2026-08-10 04:23 UTC.}

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