> I think we are in desperate need of safe vibe coding environments where code runs in a sandbox with security policies that make it impossible to screw up.

OpenAI's new Rust version of Codex might be of interest, haven't dived deeper into the codebase but seems they're thinking about sandboxing from the get-go: https://github.com/openai/codex/blob/7896b1089dbf702dd079299...