TLDR Tech / Dev
What Bun Can Tell Us About AI, Open Source, and Anthropic
Anthropic acquired Bun's maker Oven in December 2025, and the runtime has kept growing fast (npm installs up ~16X to 7.3M/month). However, two shifts stand out: AI now writes most commits (peaking above 80%), while human contributors have roughly halved, with most of the original team gone and external contributions falling sharply.
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