Homelab · Companies · Politics
Notes from running my own infrastructure — and my own companies.
I write about what I actually run: self-hosted services, the companies I've founded, and the politics that shape both — with no sponsored takes and no funnel.
self-hosted.independent.opinionated.
From the blog
Latest notes
July 15, 2026
Feeding a WMS heatmap into MapLibre with a local proxy
Leipzig's heat-stress map only speaks EPSG:4326, MapLibre's raster sources want Web Mercator. A 180-line localhost tile proxy bridges the gap.
Read more →July 9, 2026
How an empty firewall file bricked my whole network
A deploy pipeline run from the wrong directory truncated my OpenWrt firewall config to 0 bytes. Postmortem: symptoms, red herrings, recovery, lessons.
Read more →July 9, 2026
Why another tech blog
Why I started this site: practitioner notes from running real infrastructure and real companies, self-hosted, with no tracking and some opinions.
Read more →Ventures
What I build
ANDERS IT
Founder
IT consulting for DACH SMEs: self-hosting, digital sovereignty, NIS2/GDPR and local AI.
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cloudsourced
Founder
EU-sovereign managed open-source hosting platform.
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Avelia Health
Co-Founder
Privacy-first app for couples, from fertility through early childhood.
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DroidSolutions / KULDIG
Co-Founder
App development from Leipzig; KULDIG builds digital culture products.
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Pauly Predictions
Co-Founder
Software for predicting physicochemical properties of chemicals — a UFZ spin-off.
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