Field Notes
Isolated-machine mode disables SSH agent forwarding — by design
From the chapter: The cluster that almost wasn't
The OrbStack isolation setting behind an unexpected SSH authentication problem.
OrbStack's "Isolated machine" option cuts the VM off from the host — and it silently removes SSH agent forwarding from the creation dialog. Two hours of "why is my key not being offered" ended here.
For a lab where the VM needs host SSH access: isolated OFF, forwarding ON.
Discussion
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