Notes on self-hosting, running companies, and politics.https://antonanders.de/https://antonanders.de/blog/bricked-network-empty-openwrt-firewall/https://antonanders.de/blog/bricked-network-empty-openwrt-firewall/A deploy pipeline run from the wrong directory truncated my OpenWrt firewall config to 0 bytes. Postmortem: symptoms, red herrings, recovery, lessons.Thu, 09 Jul 2026 00:00:00 GMThttps://antonanders.de/blog/what-i-do-with-each-company/https://antonanders.de/blog/what-i-do-with-each-company/A tour of the five ventures I build and run: IT consulting, EU-sovereign hosting, a privacy-first health app, app development, and chemistry software.Thu, 09 Jul 2026 00:00:00 GMThttps://antonanders.de/blog/who-i-am/https://antonanders.de/blog/who-i-am/Anton Anders is a developer and founder from the greater Leipzig area. He builds companies, runs a homelab, and writes about self-hosting and sovereignty.Thu, 09 Jul 2026 00:00:00 GMThttps://antonanders.de/blog/why-another-tech-blog/https://antonanders.de/blog/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.Thu, 09 Jul 2026 00:00:00 GMThttps://antonanders.de/blog/log4j-weekend/https://antonanders.de/blog/log4j-weekend/How I spent the Log4Shell weekend: auditing every service and server my company runs, patching Jitsi and Unifi, and what made the audit quick.Sun, 12 Dec 2021 00:00:00 GMThttps://antonanders.de/blog/valhalla-routing-using-pedestrian-areas/https://antonanders.de/blog/valhalla-routing-using-pedestrian-areas/Valhalla refuses to route pedestrians across OSM pedestrian areas. Why that happens in graph.lua, and a workaround that routes along the polygon edges.Sun, 05 Dec 2021 00:00:00 GMT