Function trim

packages/app/src/components/debug-bar.tsx:207–209

(list: Array<{ at: number; dur: number }>, span: number, at: number)

    let snap = 0

    const trim = (list: Array<{ at: number; dur: number }>, span: number, at: number) => {
      while (list[0] && at - list[0].at > span) list.shift()
    }

    const syncFrame = (at: number) => {
      trim(fps, span, at)