There's nothing stopping you from
ignoring the ecosystem and just using Rust with the stdlib. Remember that the context for this thread is AI-generated code. If the AI is writing it all, the code is effectively free, you can write tens of thousands of lines of it with a single prompt, you can customize it all to your specific use-case, and you can throw it away and have the AI write it again instead of maintaining it. Also as manual programmers we're accustomed to programming being a team sport where you fit in gracefully into the ecosystem and build things with the maintainer and rest of the team in mind, but in the AI world, you can ignore the ecosystem, there is no maintainer (because you throw it away and have the AI write something else when the requirements change), and the rest of the team has all been laid off.
There's a bunch of threads going on simultaneously on HN now about how people often misuse AI by applying rules of thumb learned from doing things as a professional to what they prompt the AI to do, rather than just asking it directly for what you want. This is one of those cases. Many of the rules of thumb of professional programming no longer hold under the radically different economics of AI-driven development.