Zig Quits GitHub, Says Microsoft's AI Obsession Has Ruined the Service

The Zig Software Foundation has quit GitHub after years of unresolved GitHub Actions bugs -- including a 'safe_sleep' script that could spin forever and cripple CI runners. Zig leadership puts the blame on Microsoft's growing AI-first priorities and declining engineering quality. Other open-source developers are voicing similar frustrations. The Register reports: The drama began in April 2025 when GitHub user AlekseiNikiforovIBM started a thread titled 'safe_sleep.sh rarely hangs indefinitely.' GitHub addressed the problem in August, but didn't reveal that in the thread, which remained open until Monday. That timing appears notable. Last week, Andrew Kelly, president and lead developer of the Zig Software Foundation, announced that the Zig project is moving to Codeberg, a non-profit git hosting service, because GitHub no longer demonstrates commitment to engineering excellence.

One piece of evidence he offered for that assessment was the 'safe_sleep.sh rarely hangs indefinitely' thread. 'Most importantly, Actions has inexcusable bugs while being completely neglected,' Kelly wrote. 'After the CEO of GitHub said to 'embrace AI or get out', it seems the lackeys at Microsoft took the hint, because GitHub Actions started 'vibe-scheduling' -- choosing jobs to run seemingly at random. Combined with other bugs and inability to manually intervene, this causes our CI system to get so backed up that not even master branch commits get checked.'

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