How we hacked the Bavarian State with an Open Source

In September 2025, a few of us Open Source nerds heard that the Bavarian government wanted to "sneakily" "invest" another billion Euro in Microsoft Cloud, Teams and 365 – without a tender, and before the year ends (Base contract) I talked to friends, and we created an open letter. Soon we were like ten initiators. We found support among many Bavarian Open Source companies and NGOs, only weeks later 160 companies and institutions had been signing the letter. When larger German NGOs like the Gesellschaft für Informatik (Society for Informatics) and the Bund der Steuerzahler (Tax Payers' Assoc

https://cdn.media.ccc.de/events/kde/kde2026/h264-sd/kde2026-29-eng-How_we_hacked_the_Bavarian_State_with_an_Open_Source_Open_Letter_sd.mp4

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