This guide documents how to enable SSH access from OrbStack Linux guest VMs to the macOS host. The standard "Remote Login" toggle in System Settings is necessary but not sufficient — macOS uses launchd socket activation for sshd which only binds to the loopback interface, making it unreachable from guest VMs on the OrbStack bridge network.
The solution is to run a second sshd instance via a custom LaunchDaemon that binds to all interfaces.