Meta production engineering director Nicholas Shortway, who worked as an infrastructure engineer at Instagram prior to the acquisition, is now testifying about what it was like keeping the app running in the early days. “Everything was on fire,” he says, and since so few people on the team knew how to get the app back up and running during outages or other crises, Shortway recalls carrying a computer with him wherever he went, and fixing Instagram from grocery stores and movie theatres.