Google just broke it and proved open source has a new single point of failure.
Open source is not a gift. It is a contract. Google just broke it.
This week at Google I/O, Google announced that Gemini CLI, its open source AI coding assistant, will stop working on June 18. That is 30 days from announcement to shutdown. The replacement is Antigravity CLI: closed source, proprietary, and by most early accounts, not ready.
Gemini CLI had 100,000 GitHub stars, 6,000 code contributions merged from hundreds of volunteers, and a license that explicitly allows anyone to use, modify, and share the code.
I used Gemini CLI from the start. I watched it improve, not just from Google's engineering, but from the community around it. People reported bugs, wrote extensions, fixed edge cases. The kind of investment that turns a tool into infrastructure.
Then Google changed the locks.
But there is a detail that makes it worse. Enterprise customers on paid licenses keep full access indefinitely. The individual developers, the contributors, the open source community? Cut off. The people who built the product are the ones losing access to it.
As one contributor asked: "What was the point of thousands of community contributions if we can't meaningfully benefit from or contribute to what comes next?"
And the replacement? Antigravity CLI is closed source with no public bug tracker and no documented security process. Early users report it cannot handle basic actions like resizing a window. The migration docs are full of broken links.
This is not an isolated incident. killedbygoogle.com tracks over 300 discontinued Google products. But killing a proprietary product is one thing. Shutting down a project that hundreds of people invested their unpaid labor in is a different kind of breach.
When corporations have pulled the rug on open source projects before, the community had a response: copy the code and keep developing it independently. When a major infrastructure company restricted its most popular tool's license, the community launched an independent version within weeks.
But that escape hatch does not exist here. Gemini CLI is just a "harness", a steering wheel. The engine, Google's AI models, stays locked inside Google's servers. You can copy the interface, but you cannot copy the intelligence it connects to. This is what dependency on a single vendor looks like when that vendor decides to walk away.
The real lesson is not that Google is unreliable. Everyone knows that. The lesson is about leverage: when you contribute to a corporate-controlled open source project, your influence disappears the moment the corporation changes direction. The license protects the code. It does not protect the community's investment.
If your workflow depends on a tool that exists at the pleasure of a single company, the question is not whether it gets shut down. It is when. What would it take for you to stop betting on something one company can kill with 30 days' notice?
