What act can reproduce, and what it silently cannot
Local workflow runners reproduce containerised jobs faithfully and host jobs not at all. Skip-and-warn is the only honest handling of the gap.
github-actions
2 posts
Forty-five minutes per CI guess is not a feedback loop
Reproducing a failing CI job locally turns a 45-minute guess into a 2-minute iteration. What runs locally, what cannot, and why faking the rest is worse.