SpaceX closes on Cursor for real now

SpaceX has officially completed its acquisition of Cursor, the AI coding tool that makes writing software feel less like wrestling a cat. The deal had been in limbo for months while regulators reviewed it — now it's done.

Cursor makes code with an LLM. You type what you want, it writes the files, and you review the diff. The tool is fast, it's popular, and it's gotten a lot of heat from the open-source crowd for training on public repos without much attribution. That's a separate debate, but worth keeping in mind when you hear about who owns it.

What this means is that the tools for writing the next generation of aerospace software — flight control systems, telemetry pipelines, ground-station interfaces — are now under one roof with the company that builds the rockets. Cursor's founders have been clear they plan to keep the product independent, and most of the team is staying. But the financial and strategic leash is real now. If you're a small shop building flight software and you rely on Cursor, you're indirectly answering to Musk's operation.

Why this matters for us: when the tools that write our code end up inside a company that's quietly reshaping how critical infrastructure gets built, the question isn't just about pricing — it's about who holds the pen.