alt Hacker News> require you to run the agent on your Mac instead of in a Sandbox
You don't have to! All recent Macs come with nearly zero perf cost virtualization. You can easily run Mac or Linux VMs assuming same architecture. Use it all the time for development and whatever.
Use Tart [1] or VirtualBuddy [2], both open-source, for a packaged solution. Or in the spirit of this post, vibe code your own wrapper around the OS API [3]
More recently, there are also Apple containers [4]
[2] https://github.com/insidegui/VirtualBuddy
[3] https://developer.apple.com/documentation/virtualization
>> I feel like we're back to 1990's security here.
> vibe code your own wrapper around the OS API
Maybe stick with one of the existing projects? Throwing out all of the edge cases and hardening that went into a security-related project just to burn a bunch of resources to generate a worse one you have to maintain yourself is 90s-level security with 2026-level inefficiency, IMO.