What does Ezra 3:8 mean?

In the second month of the second year after they arrived in Jerusalem, Zerubbabel, Jeshua, and the rest of their people—priests, Levites, and everyone who’d come back from exile—started working. They put the Levites who were twenty years old and up in charge of supervising the work on the Lord’s house. Ezra 3:8 - Modern Text Bible

(A year after returning, they officially begin rebuilding the temple, with the Levites overseeing the project, just like in the old days.)