Hands-on with OpenAI Codex Virtual Machine Feature
kevinkern · x · 2026-07-18
The author tried OpenAI's Codex (Tart) feature, which generates isolated macOS virtual machines for testing applications, avoiding the distraction of frequent desktop window flashing. However, each VM currently consumes about 8GB of memory and has noticeable control latency. The author ultimately decided to continue local testing but found the technical approach interesting.
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