TIL about tracking your Codex tokens usage

I use Codex for both code-related and non-code tasks in Cursor and in the terminal. I wanted a better way to track Codex token usage day by day. Recently, I learned about @ccusage/codex, which reads your local Codex logs and spits out a table of exactly how many tokens you used each day. This breakdown isn't provided by the Codex usage page.