This is a gem: Mr. Musk may also be testing Twitter’s engineers. He and his team have assigned some of them projects to complete, three people with knowledge o

This is a gem: Mr. Musk may also be testing Twitter’s engineers. He and his team have assigned some of them projects to complete, three people with knowledge of the matter said. One project involved changes to Twitter’s login screen, they said. Some engineers worked late into the night on Friday to complete the assignments, they said.